{"x402Version":2,"payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resources":[{"id":12556,"slug":"12556","resource":"https://api.carbon-cashmere.de/v1/bittensor-derivatives/network-fundamentals","description":"Latest TAO network-wide fundamentals: total issuance, total stake, free float, supply percentage mined, stake ratio. Snapshot every 10 min.","type":"http","x402Version":2,"accepts":[{"scheme":"exact","network":"eip155:8453","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:137","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:42161","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:480","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x79A02482A880bCE3F13e09Da970dC34db4CD24d1","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","payTo":"GgS891nMiEETjBEFw1QQxVcAqsRV34mDYpxh24TrpCiD","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","payTo":"5GRGZVUNRF2S4BY2TNRBCUCKUOT3H6BP56ACPCZVGR3ISTTRRSSB2RGJGI","asset":"31566704","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"stellar:pubnet","payTo":"GDYFWCUFLG7MZAITOOVITYDNCLVJXWJ7OASYJAJPPOTONUQRNBCRO2VP","asset":"USDC:GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN","amount":"200000","maxTimeoutSeconds":300}],"outputSchema":{"bazaar":{"info":{"input":{"method":"GET","type":"http"},"output":{"example":{},"type":"json"}},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"properties":{},"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"}},"eip2612GasSponsoring":{"info":{"description":"The facilitator accepts EIP-2612 gasless Permit to Permit2 canonical contract.","version":"1"},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"amount":{"description":"The amount to approve (uint256).","pattern":"^[0-9]+$","type":"string"},"asset":{"description":"The address of the ERC-20 token contract.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"deadline":{"description":"The timestamp at which the signature expires.","pattern":"^[0-9]+$","type":"string"},"from":{"description":"The address of the sender.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"nonce":{"description":"The current EIP-2612 nonce of the sender.","pattern":"^[0-9]+$","type":"string"},"signature":{"description":"The 65-byte concatenated signature (r, s, v) as a hex string.","pattern":"^0x[a-fA-F0-9]+$","type":"string"},"spender":{"description":"The address of the spender (Canonical Permit2).","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"version":{"description":"Schema version identifier.","pattern":"^[0-9]+(\\.[0-9]+)*$","type":"string"}},"required":["from","asset","spender","amount","nonce","deadline","signature","version"],"type":"object"}},"erc20ApprovalGasSponsoring":{"info":{"description":"The facilitator accepts a raw signed approval transaction and will sponsor the gas fees.","version":"1"},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"amount":{"description":"Approval amount (uint256).","pattern":"^[0-9]+$","type":"string"},"asset":{"description":"The ERC-20 token contract address to approve.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"from":{"description":"The address of the sender.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"signedTransaction":{"description":"RLP-encoded signed transaction calling ERC20.approve().","pattern":"^0x[a-fA-F0-9]+$","type":"string"},"spender":{"description":"The address of the spender (Canonical Permit2).","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"version":{"description":"Schema version identifier.","pattern":"^[0-9]+(\\.[0-9]+)*$","type":"string"}},"required":["from","asset","spender","amount","signedTransaction","version"],"type":"object"}},"offer-receipt":{"info":{"offers":[{"acceptIndex":0,"format":"eip712","payload":{"amount":"20000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","network":"eip155:8453","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/bittensor-derivatives/network-fundamentals","scheme":"exact","validUntil":1789630697,"version":1},"signature":"0xe0cd35344791030b62bdced3e9de6f797abbfa9bc8ba3a63b8f39e7d5b0eb02e778ba4ad679c9074f9c542345c40be2393912b2dcd66c08e70c7cbc6807d68b31c"},{"acceptIndex":1,"format":"eip712","payload":{"amount":"20000","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","network":"eip155:137","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/bittensor-derivatives/network-fundamentals","scheme":"exact","validUntil":1789630697,"version":1},"signature":"0xdc8fbfeac36b1836a3af87387abb469d2eb2ccdf53ed9d7321b4200e72bf5d0148427cce561d629f0a8a60af8279286e1fe3ff48a7f4af911c1f3711b77652c81b"},{"acceptIndex":2,"format":"eip712","payload":{"amount":"20000","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","network":"eip155:42161","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/bittensor-derivatives/network-fundamentals","scheme":"exact","validUntil":1789630697,"version":1},"signature":"0x716767cba9278bae1d83d6c39379a24771dcff4a7b8b1b02c9fdbe59b85394147496bd5375eb2f6d3e54f35d7c345e39af379301ee4b9777fca44054254b6fad1c"},{"acceptIndex":3,"format":"eip712","payload":{"amount":"20000","asset":"0x79A02482A880bCE3F13e09Da970dC34db4CD24d1","network":"eip155:480","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/bittensor-derivatives/network-fundamentals","scheme":"exact","validUntil":1789630697,"version":1},"signature":"0xec4b34ee0364c9a06091efcec70d0971783648b89ebd1a7425556d902285bb4e34e5350acfd04b1342372a9dc01e41f18b840e4f356c772a0a778580cacd3de01c"},{"acceptIndex":4,"format":"eip712","payload":{"amount":"20000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","payTo":"GgS891nMiEETjBEFw1QQxVcAqsRV34mDYpxh24TrpCiD","resourceUrl":"https://api.carbon-cashmere.de/v1/bittensor-derivatives/network-fundamentals","scheme":"exact","validUntil":1789630697,"version":1},"signature":"0xbdb276713477a6b70279fefa9fbf81b1c2625c266b8a13eaaa5968164d7779cf4e88d287c9538807735a7cb007a8f7ec3d8113f88759049332f6d36efc3372e51c"},{"acceptIndex":5,"format":"eip712","payload":{"amount":"20000","asset":"31566704","network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","payTo":"5GRGZVUNRF2S4BY2TNRBCUCKUOT3H6BP56ACPCZVGR3ISTTRRSSB2RGJGI","resourceUrl":"https://api.carbon-cashmere.de/v1/bittensor-derivatives/network-fundamentals","scheme":"exact","validUntil":1789630697,"version":1},"signature":"0x127177c960583984b2053c26e8163f08580bb4528f13f2ca7a5419eff1796f43011a603f0cf42d95bcf8d1bb1595e9244be147689656e0819f8996a60d4f870e1b"},{"acceptIndex":6,"format":"eip712","payload":{"amount":"200000","asset":"USDC:GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN","network":"stellar:pubnet","payTo":"GDYFWCUFLG7MZAITOOVITYDNCLVJXWJ7OASYJAJPPOTONUQRNBCRO2VP","resourceUrl":"https://api.carbon-cashmere.de/v1/bittensor-derivatives/network-fundamentals","scheme":"exact","validUntil":1789630697,"version":1},"signature":"0xdb97cf21c70be973dc1a57dea65a42a9614425a61a929ce8a564b31bfb3907a227b149f8be85ccc5f2be30960db56f70e14c55be9014cf12ce9f2e9f3c9554311c"}]},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"format":{"enum":["eip712","jws"],"type":"string"},"payload":{"type":"object"},"signature":{"type":"string"}},"required":["format","payload","signature"],"type":"object"}},"payment-identifier":{"info":{"required":false},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"id":{"maxLength":128,"minLength":16,"pattern":"^[a-zA-Z0-9_-]+$","type":"string"},"required":{"type":"boolean"}},"required":["required"],"type":"object"}}},"tags":["bazaar","eip2612GasSponsoring","erc20ApprovalGasSponsoring","offer-receipt","payment-identifier"],"sourceHost":"api.carbon-cashmere.de","lastUpdated":"2026-09-17T06:38:18.021Z","quality":{"calls30d":7,"uniquePayers30d":4,"lastCalledAt":"2026-09-17T06:38:17.429Z"},"liveness":{},"verified":false,"featured":false},{"id":12557,"slug":"12557","resource":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/recent-blocks","description":"Recent Kaspa blocks (max 144 per call = $1.44 cap). Optional chain_only flag to filter selected-parent chain blocks. AI agent API for backtesters and indexers. Informational research data — not investment advice.","type":"http","x402Version":2,"accepts":[{"scheme":"exact","network":"eip155:8453","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:137","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:42161","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:480","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x79A02482A880bCE3F13e09Da970dC34db4CD24d1","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","payTo":"GgS891nMiEETjBEFw1QQxVcAqsRV34mDYpxh24TrpCiD","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","payTo":"5GRGZVUNRF2S4BY2TNRBCUCKUOT3H6BP56ACPCZVGR3ISTTRRSSB2RGJGI","asset":"31566704","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"stellar:pubnet","payTo":"GDYFWCUFLG7MZAITOOVITYDNCLVJXWJ7OASYJAJPPOTONUQRNBCRO2VP","asset":"USDC:GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN","amount":"200000","maxTimeoutSeconds":300}],"outputSchema":{"bazaar":{"info":{"input":{"method":"GET","type":"http"},"output":{"example":{},"type":"json"}},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"properties":{},"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"}},"eip2612GasSponsoring":{"info":{"description":"The facilitator accepts EIP-2612 gasless Permit to Permit2 canonical contract.","version":"1"},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"amount":{"description":"The amount to approve (uint256).","pattern":"^[0-9]+$","type":"string"},"asset":{"description":"The address of the ERC-20 token contract.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"deadline":{"description":"The timestamp at which the signature expires.","pattern":"^[0-9]+$","type":"string"},"from":{"description":"The address of the sender.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"nonce":{"description":"The current EIP-2612 nonce of the sender.","pattern":"^[0-9]+$","type":"string"},"signature":{"description":"The 65-byte concatenated signature (r, s, v) as a hex string.","pattern":"^0x[a-fA-F0-9]+$","type":"string"},"spender":{"description":"The address of the spender (Canonical Permit2).","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"version":{"description":"Schema version identifier.","pattern":"^[0-9]+(\\.[0-9]+)*$","type":"string"}},"required":["from","asset","spender","amount","nonce","deadline","signature","version"],"type":"object"}},"erc20ApprovalGasSponsoring":{"info":{"description":"The facilitator accepts a raw signed approval transaction and will sponsor the gas fees.","version":"1"},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"amount":{"description":"Approval amount (uint256).","pattern":"^[0-9]+$","type":"string"},"asset":{"description":"The ERC-20 token contract address to approve.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"from":{"description":"The address of the sender.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"signedTransaction":{"description":"RLP-encoded signed transaction calling ERC20.approve().","pattern":"^0x[a-fA-F0-9]+$","type":"string"},"spender":{"description":"The address of the spender (Canonical Permit2).","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"version":{"description":"Schema version identifier.","pattern":"^[0-9]+(\\.[0-9]+)*$","type":"string"}},"required":["from","asset","spender","amount","signedTransaction","version"],"type":"object"}},"offer-receipt":{"info":{"offers":[{"acceptIndex":0,"format":"eip712","payload":{"amount":"20000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","network":"eip155:8453","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/recent-blocks","scheme":"exact","validUntil":1788302373,"version":1},"signature":"0x559141edf770befa3b5285f0d6067c692bb470201c00ba2bbe3f779dd0b8fae938dd56dec78a6604b791736e9980cf244c6bdf486c73f4da30775ae35d026d101b"},{"acceptIndex":1,"format":"eip712","payload":{"amount":"20000","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","network":"eip155:137","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/recent-blocks","scheme":"exact","validUntil":1788302373,"version":1},"signature":"0xd10fb4c6e481f3626fa48a029cdee0fae1b15bb92f348b4ca5d5e7ad13a23b5d209bab06de5c067d781adba76d30173a0244cec197ef83d5d782c8086f98ea3e1c"},{"acceptIndex":2,"format":"eip712","payload":{"amount":"20000","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","network":"eip155:42161","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/recent-blocks","scheme":"exact","validUntil":1788302373,"version":1},"signature":"0xdee4ba47ea8a6aad49051435e8d09e81eb8453c81d941a0381478a008f31a5170891232853193dd79d434740c3f1f6278065500e961b14961dec712e4d6494b11b"},{"acceptIndex":3,"format":"eip712","payload":{"amount":"20000","asset":"0x79A02482A880bCE3F13e09Da970dC34db4CD24d1","network":"eip155:480","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/recent-blocks","scheme":"exact","validUntil":1788302373,"version":1},"signature":"0x5383ef53a46fee33b3f117e242c9b625d722b48f0aaacae5772b5a27e8a1004a4cf2b5eab1894adf8e4540db16e4986369099fae51a263dbb564e0dcb9fb67541b"},{"acceptIndex":4,"format":"eip712","payload":{"amount":"20000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","payTo":"GgS891nMiEETjBEFw1QQxVcAqsRV34mDYpxh24TrpCiD","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/recent-blocks","scheme":"exact","validUntil":1788302373,"version":1},"signature":"0xa9d23f84342f4c0294423964050126d500ce0eae0cd5e25dd36f2d08bb8d57425f7916ff408b06ac8dcebc0152d08da759f6fde66dd300e5e0576eb77e468bae1c"},{"acceptIndex":5,"format":"eip712","payload":{"amount":"20000","asset":"31566704","network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","payTo":"5GRGZVUNRF2S4BY2TNRBCUCKUOT3H6BP56ACPCZVGR3ISTTRRSSB2RGJGI","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/recent-blocks","scheme":"exact","validUntil":1788302373,"version":1},"signature":"0x22cea87ec3ef66a5639046af5fc3ea97773de4df3c5c78b1703b062c769542ac1cc6fd6e68f50c8986dfa629aa5a9e34512b0d41fde00a8f137a1028255de4681c"},{"acceptIndex":6,"format":"eip712","payload":{"amount":"200000","asset":"USDC:GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN","network":"stellar:pubnet","payTo":"GDYFWCUFLG7MZAITOOVITYDNCLVJXWJ7OASYJAJPPOTONUQRNBCRO2VP","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/recent-blocks","scheme":"exact","validUntil":1788302373,"version":1},"signature":"0x4c7f2fcee4fe2e4fad56d6ff85560a77515487c575b66990e4067449ff791dbf42d8aa55903a4435df4efde8b0b7787ab1f8c463e66f0f0d0c5a33212f802ea71c"}]},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"format":{"enum":["eip712","jws"],"type":"string"},"payload":{"type":"object"},"signature":{"type":"string"}},"required":["format","payload","signature"],"type":"object"}},"payment-identifier":{"info":{"required":false},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"id":{"maxLength":128,"minLength":16,"pattern":"^[a-zA-Z0-9_-]+$","type":"string"},"required":{"type":"boolean"}},"required":["required"],"type":"object"}}},"tags":["bazaar","eip2612GasSponsoring","erc20ApprovalGasSponsoring","offer-receipt","payment-identifier"],"sourceHost":"api.carbon-cashmere.de","lastUpdated":"2026-09-01T21:39:33.983Z","quality":{"calls30d":3,"uniquePayers30d":3,"lastCalledAt":"2026-09-01T21:39:33.325Z"},"liveness":{},"verified":false,"featured":false},{"id":12558,"slug":"12558","resource":"https://api.carbon-cashmere.de/v1/btc-derivatives/coinbase-messages","description":"Curated Bitcoin coinbase scriptSig messages (printable ASCII only). Pool tags, BIP-comment campaigns, political statements. Window up to 7d.","type":"http","x402Version":2,"accepts":[{"scheme":"exact","network":"eip155:8453","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:137","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:42161","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:480","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x79A02482A880bCE3F13e09Da970dC34db4CD24d1","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","payTo":"GgS891nMiEETjBEFw1QQxVcAqsRV34mDYpxh24TrpCiD","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","payTo":"5GRGZVUNRF2S4BY2TNRBCUCKUOT3H6BP56ACPCZVGR3ISTTRRSSB2RGJGI","asset":"31566704","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"stellar:pubnet","payTo":"GDYFWCUFLG7MZAITOOVITYDNCLVJXWJ7OASYJAJPPOTONUQRNBCRO2VP","asset":"USDC:GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN","amount":"200000","maxTimeoutSeconds":300}],"outputSchema":{"bazaar":{"info":{"input":{"method":"GET","type":"http"},"output":{"example":{},"type":"json"}},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"properties":{},"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"}},"eip2612GasSponsoring":{"info":{"description":"The facilitator accepts EIP-2612 gasless Permit to Permit2 canonical contract.","version":"1"},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"amount":{"description":"The amount to approve (uint256).","pattern":"^[0-9]+$","type":"string"},"asset":{"description":"The address of the ERC-20 token contract.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"deadline":{"description":"The timestamp at which the signature expires.","pattern":"^[0-9]+$","type":"string"},"from":{"description":"The address of the sender.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"nonce":{"description":"The current EIP-2612 nonce of the sender.","pattern":"^[0-9]+$","type":"string"},"signature":{"description":"The 65-byte concatenated signature (r, s, v) as a hex string.","pattern":"^0x[a-fA-F0-9]+$","type":"string"},"spender":{"description":"The address of the spender (Canonical Permit2).","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"version":{"description":"Schema version identifier.","pattern":"^[0-9]+(\\.[0-9]+)*$","type":"string"}},"required":["from","asset","spender","amount","nonce","deadline","signature","version"],"type":"object"}},"erc20ApprovalGasSponsoring":{"info":{"description":"The facilitator accepts a raw signed approval transaction and will sponsor the gas fees.","version":"1"},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"amount":{"description":"Approval amount (uint256).","pattern":"^[0-9]+$","type":"string"},"asset":{"description":"The ERC-20 token contract address to approve.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"from":{"description":"The address of the sender.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"signedTransaction":{"description":"RLP-encoded signed transaction calling ERC20.approve().","pattern":"^0x[a-fA-F0-9]+$","type":"string"},"spender":{"description":"The address of the spender (Canonical Permit2).","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"version":{"description":"Schema version identifier.","pattern":"^[0-9]+(\\.[0-9]+)*$","type":"string"}},"required":["from","asset","spender","amount","signedTransaction","version"],"type":"object"}},"offer-receipt":{"info":{"offers":[{"acceptIndex":0,"format":"eip712","payload":{"amount":"20000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","network":"eip155:8453","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/btc-derivatives/coinbase-messages","scheme":"exact","validUntil":1789585488,"version":1},"signature":"0xa8756e9933b1556a53b00c2298ef3b88f0f47b1bdc43aa30b82105dfce94a7315d94e29284048db7554fb084fd4fc192f280f33bbb7f0552afbae0075394093e1c"},{"acceptIndex":1,"format":"eip712","payload":{"amount":"20000","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","network":"eip155:137","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/btc-derivatives/coinbase-messages","scheme":"exact","validUntil":1789585488,"version":1},"signature":"0x733e523d460eeacc4d274bd033570af3d3ba9f6a22bbc420854aaa8b16d6fe131b03272286a2a15515edf166eaa31d3786677e9098c7136008e5ed9eaee176291b"},{"acceptIndex":2,"format":"eip712","payload":{"amount":"20000","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","network":"eip155:42161","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/btc-derivatives/coinbase-messages","scheme":"exact","validUntil":1789585488,"version":1},"signature":"0xd4fafde6f4a9729e13b1df918b46ad3d2ead5af6d663c86e2200c793e987a1864d4cfbbdb33480a97b90c6a18d28d596f37bde324596b2a1c705f2563948e9661c"},{"acceptIndex":3,"format":"eip712","payload":{"amount":"20000","asset":"0x79A02482A880bCE3F13e09Da970dC34db4CD24d1","network":"eip155:480","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/btc-derivatives/coinbase-messages","scheme":"exact","validUntil":1789585488,"version":1},"signature":"0x5aa86685cb5f90428e6960463a4fa60980bc06b04c5d560db116a1f27fe6bfdd4e9abf7318e1b2cfad5bc72f04c9bb288be2c8ccf682efdb4a08a6cb06c5c04e1c"},{"acceptIndex":4,"format":"eip712","payload":{"amount":"20000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","payTo":"GgS891nMiEETjBEFw1QQxVcAqsRV34mDYpxh24TrpCiD","resourceUrl":"https://api.carbon-cashmere.de/v1/btc-derivatives/coinbase-messages","scheme":"exact","validUntil":1789585488,"version":1},"signature":"0x7f80aefebfb9b40f83bcd172af36178b51d3296e91eaeee923fec2723e33c1103ca325148e323ec263edf7805dd12401be5397250c658f844ab71f196988762e1b"},{"acceptIndex":5,"format":"eip712","payload":{"amount":"20000","asset":"31566704","network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","payTo":"5GRGZVUNRF2S4BY2TNRBCUCKUOT3H6BP56ACPCZVGR3ISTTRRSSB2RGJGI","resourceUrl":"https://api.carbon-cashmere.de/v1/btc-derivatives/coinbase-messages","scheme":"exact","validUntil":1789585488,"version":1},"signature":"0x1222d778d6a45144421f0d62b37d308950d1249a2c82403eb215e33e19502e4e2030689a3bb0e5f3a66a1fc91e3d82e415082194d311a948d038d046499be9881b"},{"acceptIndex":6,"format":"eip712","payload":{"amount":"200000","asset":"USDC:GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN","network":"stellar:pubnet","payTo":"GDYFWCUFLG7MZAITOOVITYDNCLVJXWJ7OASYJAJPPOTONUQRNBCRO2VP","resourceUrl":"https://api.carbon-cashmere.de/v1/btc-derivatives/coinbase-messages","scheme":"exact","validUntil":1789585488,"version":1},"signature":"0x53f1908d6fefeca48a8e3b41802554f7613b8194c905c4feed47ebd828acfd4c176225b857a31cbdfad9431cd844002bf9cc08db2f323d392e2f0bf780b0f9b81b"}]},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"format":{"enum":["eip712","jws"],"type":"string"},"payload":{"type":"object"},"signature":{"type":"string"}},"required":["format","payload","signature"],"type":"object"}},"payment-identifier":{"info":{"required":false},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"id":{"maxLength":128,"minLength":16,"pattern":"^[a-zA-Z0-9_-]+$","type":"string"},"required":{"type":"boolean"}},"required":["required"],"type":"object"}}},"tags":["bazaar","eip2612GasSponsoring","erc20ApprovalGasSponsoring","offer-receipt","payment-identifier"],"sourceHost":"api.carbon-cashmere.de","lastUpdated":"2026-09-16T18:04:48.916Z","quality":{"calls30d":3,"uniquePayers30d":2,"lastCalledAt":"2026-09-16T18:04:48.285Z"},"liveness":{},"verified":false,"featured":false},{"id":12561,"slug":"12561","resource":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/blocks/:block_hash","description":"Single Kaspa block extract with full DAG topology (parents, selected-parent, blue/daa score, chain-block flag). AI agent API for DAG-aware indexers. Informational research data — not investment advice.","type":"http","x402Version":2,"accepts":[{"scheme":"exact","network":"eip155:8453","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:137","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:42161","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:480","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x79A02482A880bCE3F13e09Da970dC34db4CD24d1","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","payTo":"GgS891nMiEETjBEFw1QQxVcAqsRV34mDYpxh24TrpCiD","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","payTo":"5GRGZVUNRF2S4BY2TNRBCUCKUOT3H6BP56ACPCZVGR3ISTTRRSSB2RGJGI","asset":"31566704","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"stellar:pubnet","payTo":"GDYFWCUFLG7MZAITOOVITYDNCLVJXWJ7OASYJAJPPOTONUQRNBCRO2VP","asset":"USDC:GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN","amount":"200000","maxTimeoutSeconds":300}],"outputSchema":{"bazaar":{"info":{"input":{"method":"GET","pathParams":{"block_hash":"f6d45a4c7ebd80d07d2bcddcc5f98f844baf5cab540cfb7198cc9e2310acf191"},"type":"http"},"output":{"example":{},"type":"json"}},"routeTemplate":"/v1/kaspa-derivatives/blocks/:block_hash","schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"pathParams":{"type":"object"},"queryParams":{"properties":{},"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"}},"eip2612GasSponsoring":{"info":{"description":"The facilitator accepts EIP-2612 gasless Permit to Permit2 canonical contract.","version":"1"},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"amount":{"description":"The amount to approve (uint256).","pattern":"^[0-9]+$","type":"string"},"asset":{"description":"The address of the ERC-20 token contract.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"deadline":{"description":"The timestamp at which the signature expires.","pattern":"^[0-9]+$","type":"string"},"from":{"description":"The address of the sender.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"nonce":{"description":"The current EIP-2612 nonce of the sender.","pattern":"^[0-9]+$","type":"string"},"signature":{"description":"The 65-byte concatenated signature (r, s, v) as a hex string.","pattern":"^0x[a-fA-F0-9]+$","type":"string"},"spender":{"description":"The address of the spender (Canonical Permit2).","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"version":{"description":"Schema version identifier.","pattern":"^[0-9]+(\\.[0-9]+)*$","type":"string"}},"required":["from","asset","spender","amount","nonce","deadline","signature","version"],"type":"object"}},"erc20ApprovalGasSponsoring":{"info":{"description":"The facilitator accepts a raw signed approval transaction and will sponsor the gas fees.","version":"1"},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"amount":{"description":"Approval amount (uint256).","pattern":"^[0-9]+$","type":"string"},"asset":{"description":"The ERC-20 token contract address to approve.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"from":{"description":"The address of the sender.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"signedTransaction":{"description":"RLP-encoded signed transaction calling ERC20.approve().","pattern":"^0x[a-fA-F0-9]+$","type":"string"},"spender":{"description":"The address of the spender (Canonical Permit2).","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"version":{"description":"Schema version identifier.","pattern":"^[0-9]+(\\.[0-9]+)*$","type":"string"}},"required":["from","asset","spender","amount","signedTransaction","version"],"type":"object"}},"offer-receipt":{"info":{"offers":[{"acceptIndex":0,"format":"eip712","payload":{"amount":"20000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","network":"eip155:8453","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/blocks/f6d45a4c7ebd80d07d2bcddcc5f98f844baf5cab540cfb7198cc9e2310acf191","scheme":"exact","validUntil":1789032613,"version":1},"signature":"0xe2dd22acebd51654ac0348bf536e5683f83567647406fbc8adf3a8f7e988faa53fc319146b52e1ab0403172bb55fbf196e398c1986826047d69815532d200eaf1c"},{"acceptIndex":1,"format":"eip712","payload":{"amount":"20000","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","network":"eip155:137","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/blocks/f6d45a4c7ebd80d07d2bcddcc5f98f844baf5cab540cfb7198cc9e2310acf191","scheme":"exact","validUntil":1789032613,"version":1},"signature":"0x3ee138132a0fd1e85597324a13e19e2bffa15b8d7f4badb1a8fa5182a4a602f1138cf270c04427dedb37e80acadeb1cb2424c6535843af5fffeadd1e7a4a50221c"},{"acceptIndex":2,"format":"eip712","payload":{"amount":"20000","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","network":"eip155:42161","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/blocks/f6d45a4c7ebd80d07d2bcddcc5f98f844baf5cab540cfb7198cc9e2310acf191","scheme":"exact","validUntil":1789032613,"version":1},"signature":"0x86b807b2e2d6238791103d07b33a036a305adce929dedc75fae18a675e6efd7c0af67a6edd683bd79e196a7d2e08aa54c0928ee97b2bac260b3b51c3f142c40b1c"},{"acceptIndex":3,"format":"eip712","payload":{"amount":"20000","asset":"0x79A02482A880bCE3F13e09Da970dC34db4CD24d1","network":"eip155:480","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/blocks/f6d45a4c7ebd80d07d2bcddcc5f98f844baf5cab540cfb7198cc9e2310acf191","scheme":"exact","validUntil":1789032613,"version":1},"signature":"0x76a3aa72952625869c920b481f1cab01e2899b87400d9b132d3fe5605b1df25205e8a95848d2161e7b309ab505ac0e43a233aa8029ec70913e0038d5a35b7baa1b"},{"acceptIndex":4,"format":"eip712","payload":{"amount":"20000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","payTo":"GgS891nMiEETjBEFw1QQxVcAqsRV34mDYpxh24TrpCiD","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/blocks/f6d45a4c7ebd80d07d2bcddcc5f98f844baf5cab540cfb7198cc9e2310acf191","scheme":"exact","validUntil":1789032613,"version":1},"signature":"0x6b3050d62fb9420a698d474de1e6f6aaeee732f95551c577fce76a0bba1565fe2e499b7cdc214f5f43bf04e2b8291a809d052345495483fee4c10570dc3b90a01c"},{"acceptIndex":5,"format":"eip712","payload":{"amount":"20000","asset":"31566704","network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","payTo":"5GRGZVUNRF2S4BY2TNRBCUCKUOT3H6BP56ACPCZVGR3ISTTRRSSB2RGJGI","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/blocks/f6d45a4c7ebd80d07d2bcddcc5f98f844baf5cab540cfb7198cc9e2310acf191","scheme":"exact","validUntil":1789032613,"version":1},"signature":"0x24f768bec824422a43eae93f0561a2ec11c6a0a0622fd8a4a7956d77fafa29d8782a2d747998c9222a81b88442eb959d795987eebf34ec5b06aa415374cb82111b"},{"acceptIndex":6,"format":"eip712","payload":{"amount":"200000","asset":"USDC:GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN","network":"stellar:pubnet","payTo":"GDYFWCUFLG7MZAITOOVITYDNCLVJXWJ7OASYJAJPPOTONUQRNBCRO2VP","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/blocks/f6d45a4c7ebd80d07d2bcddcc5f98f844baf5cab540cfb7198cc9e2310acf191","scheme":"exact","validUntil":1789032613,"version":1},"signature":"0x7c27efa4f1c8add3b7aa1b4c7771eec80bcbd099d65e00dafdec04873033a4fe77ab893bf4c23417a17dd7b9d67f2c27dd20ac736d3b9dee5f1eda006a78f02c1b"}]},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"format":{"enum":["eip712","jws"],"type":"string"},"payload":{"type":"object"},"signature":{"type":"string"}},"required":["format","payload","signature"],"type":"object"}},"payment-identifier":{"info":{"required":false},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"id":{"maxLength":128,"minLength":16,"pattern":"^[a-zA-Z0-9_-]+$","type":"string"},"required":{"type":"boolean"}},"required":["required"],"type":"object"}}},"tags":["bazaar","eip2612GasSponsoring","erc20ApprovalGasSponsoring","offer-receipt","payment-identifier"],"sourceHost":"api.carbon-cashmere.de","lastUpdated":"2026-09-10T08:30:13.222Z","quality":{"calls30d":3,"uniquePayers30d":1,"lastCalledAt":"2026-09-10T08:30:12.239Z"},"liveness":{},"verified":false,"featured":false},{"id":12559,"slug":"12559","resource":"https://api.carbon-cashmere.de/v1/btc-derivatives/mempool-pressure","description":"Bitcoin mempool pressure classification (low/medium/high/extreme) + fee buckets (0-1, 1-2, 2-5, 5-10, 10-20, 20-50, 50-100, 100-200, 200+ sat/vB) + RBF count + CPFP candidate count. Updated every 5 min.","type":"http","x402Version":2,"accepts":[{"scheme":"exact","network":"eip155:8453","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:137","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:42161","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:480","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x79A02482A880bCE3F13e09Da970dC34db4CD24d1","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","payTo":"GgS891nMiEETjBEFw1QQxVcAqsRV34mDYpxh24TrpCiD","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","payTo":"5GRGZVUNRF2S4BY2TNRBCUCKUOT3H6BP56ACPCZVGR3ISTTRRSSB2RGJGI","asset":"31566704","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"stellar:pubnet","payTo":"GDYFWCUFLG7MZAITOOVITYDNCLVJXWJ7OASYJAJPPOTONUQRNBCRO2VP","asset":"USDC:GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN","amount":"200000","maxTimeoutSeconds":300}],"outputSchema":{"bazaar":{"info":{"input":{"method":"GET","type":"http"},"output":{"example":{},"type":"json"}},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"properties":{},"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"}},"eip2612GasSponsoring":{"info":{"description":"The facilitator accepts EIP-2612 gasless Permit to Permit2 canonical contract.","version":"1"},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"amount":{"description":"The amount to approve (uint256).","pattern":"^[0-9]+$","type":"string"},"asset":{"description":"The address of the ERC-20 token contract.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"deadline":{"description":"The timestamp at which the signature expires.","pattern":"^[0-9]+$","type":"string"},"from":{"description":"The address of the sender.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"nonce":{"description":"The current EIP-2612 nonce of the sender.","pattern":"^[0-9]+$","type":"string"},"signature":{"description":"The 65-byte concatenated signature (r, s, v) as a hex string.","pattern":"^0x[a-fA-F0-9]+$","type":"string"},"spender":{"description":"The address of the spender (Canonical Permit2).","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"version":{"description":"Schema version identifier.","pattern":"^[0-9]+(\\.[0-9]+)*$","type":"string"}},"required":["from","asset","spender","amount","nonce","deadline","signature","version"],"type":"object"}},"erc20ApprovalGasSponsoring":{"info":{"description":"The facilitator accepts a raw signed approval transaction and will sponsor the gas fees.","version":"1"},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"amount":{"description":"Approval amount (uint256).","pattern":"^[0-9]+$","type":"string"},"asset":{"description":"The ERC-20 token contract address to approve.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"from":{"description":"The address of the sender.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"signedTransaction":{"description":"RLP-encoded signed transaction calling ERC20.approve().","pattern":"^0x[a-fA-F0-9]+$","type":"string"},"spender":{"description":"The address of the spender (Canonical Permit2).","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"version":{"description":"Schema version identifier.","pattern":"^[0-9]+(\\.[0-9]+)*$","type":"string"}},"required":["from","asset","spender","amount","signedTransaction","version"],"type":"object"}},"offer-receipt":{"info":{"offers":[{"acceptIndex":0,"format":"eip712","payload":{"amount":"20000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","network":"eip155:8453","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/btc-derivatives/mempool-pressure","scheme":"exact","validUntil":1789174242,"version":1},"signature":"0xfec89baca798017e69b5b42c6bdb324b8a9611c7ff39ac646207f053e1b82c98047edfe716aa2e61891489c65e10518a0be137b54e83f66d883310106d3b53ab1c"},{"acceptIndex":1,"format":"eip712","payload":{"amount":"20000","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","network":"eip155:137","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/btc-derivatives/mempool-pressure","scheme":"exact","validUntil":1789174242,"version":1},"signature":"0x3919dddf6abc89e73f39a3c66296e476653caf8f7049205a39e6064fee3b8a4f6bf4959f072db74c0778abcb7c0d9fd78f20a19f177c4074a2660e59980f493f1b"},{"acceptIndex":2,"format":"eip712","payload":{"amount":"20000","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","network":"eip155:42161","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/btc-derivatives/mempool-pressure","scheme":"exact","validUntil":1789174242,"version":1},"signature":"0xe34318c59d86bf71ef2e5bf2bc7ff736c7563b44021e3e250423f939b434728f7ddf96183effed55f934acf2ade4103bdb74aa1d0e695ad0ab8d636ab6fe47611b"},{"acceptIndex":3,"format":"eip712","payload":{"amount":"20000","asset":"0x79A02482A880bCE3F13e09Da970dC34db4CD24d1","network":"eip155:480","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/btc-derivatives/mempool-pressure","scheme":"exact","validUntil":1789174242,"version":1},"signature":"0x0155f5c459fd07cb96adf7f5c9cd29c22006147ad2174ec2ecd6071bbac9712d7778ef414562d000a3a89ff051fcbce06a9f993a2816b6dc6a1f27000b68cc511c"},{"acceptIndex":4,"format":"eip712","payload":{"amount":"20000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","payTo":"GgS891nMiEETjBEFw1QQxVcAqsRV34mDYpxh24TrpCiD","resourceUrl":"https://api.carbon-cashmere.de/v1/btc-derivatives/mempool-pressure","scheme":"exact","validUntil":1789174242,"version":1},"signature":"0x1530dc4199a0f2120d4c3e0ddab96393a9163902bd4ec761016b6180ed4480a965d26f010888a01b480b36c3eb2f45ee053a03e349d4316c2402a2d81d658d671b"},{"acceptIndex":5,"format":"eip712","payload":{"amount":"20000","asset":"31566704","network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","payTo":"5GRGZVUNRF2S4BY2TNRBCUCKUOT3H6BP56ACPCZVGR3ISTTRRSSB2RGJGI","resourceUrl":"https://api.carbon-cashmere.de/v1/btc-derivatives/mempool-pressure","scheme":"exact","validUntil":1789174242,"version":1},"signature":"0x60f4bbdceb53ceaf208f18c5ef2aa5c5df1d587f1d5560f1818aefefa1a665da3a9da3a9af09fc254b6cecfd87c769856d0c6c7698b1bc8e29de81e3c4c194a51b"},{"acceptIndex":6,"format":"eip712","payload":{"amount":"200000","asset":"USDC:GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN","network":"stellar:pubnet","payTo":"GDYFWCUFLG7MZAITOOVITYDNCLVJXWJ7OASYJAJPPOTONUQRNBCRO2VP","resourceUrl":"https://api.carbon-cashmere.de/v1/btc-derivatives/mempool-pressure","scheme":"exact","validUntil":1789174242,"version":1},"signature":"0x5a7f801a829ae23bf31c84f4438b0c0e49280bfbae73a2413ee11455185175094f565b51136b20825ed81d463803266cf422acda32d2bd1262821a4acd4c60d41c"}]},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"format":{"enum":["eip712","jws"],"type":"string"},"payload":{"type":"object"},"signature":{"type":"string"}},"required":["format","payload","signature"],"type":"object"}},"payment-identifier":{"info":{"required":false},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"id":{"maxLength":128,"minLength":16,"pattern":"^[a-zA-Z0-9_-]+$","type":"string"},"required":{"type":"boolean"}},"required":["required"],"type":"object"}}},"tags":["bazaar","eip2612GasSponsoring","erc20ApprovalGasSponsoring","offer-receipt","payment-identifier"],"sourceHost":"api.carbon-cashmere.de","lastUpdated":"2026-09-11T23:50:43.121Z","quality":{"calls30d":2,"uniquePayers30d":2,"lastCalledAt":"2026-09-11T23:50:42.613Z"},"liveness":{},"verified":false,"featured":false},{"id":12560,"slug":"12560","resource":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/diversity","description":"Kaspa own-node peer-network breakdown (IPv4/IPv6) + user-agent distribution. AI agent API for network-health monitoring, node-operator analytics. Informational research data — not investment advice.","type":"http","x402Version":2,"accepts":[{"scheme":"exact","network":"eip155:8453","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:137","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:42161","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:480","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x79A02482A880bCE3F13e09Da970dC34db4CD24d1","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","payTo":"GgS891nMiEETjBEFw1QQxVcAqsRV34mDYpxh24TrpCiD","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","payTo":"5GRGZVUNRF2S4BY2TNRBCUCKUOT3H6BP56ACPCZVGR3ISTTRRSSB2RGJGI","asset":"31566704","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"stellar:pubnet","payTo":"GDYFWCUFLG7MZAITOOVITYDNCLVJXWJ7OASYJAJPPOTONUQRNBCRO2VP","asset":"USDC:GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN","amount":"200000","maxTimeoutSeconds":300}],"outputSchema":{"bazaar":{"info":{"input":{"method":"GET","type":"http"},"output":{"example":{},"type":"json"}},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"properties":{},"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"}},"eip2612GasSponsoring":{"info":{"description":"The facilitator accepts EIP-2612 gasless Permit to Permit2 canonical contract.","version":"1"},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"amount":{"description":"The amount to approve (uint256).","pattern":"^[0-9]+$","type":"string"},"asset":{"description":"The address of the ERC-20 token contract.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"deadline":{"description":"The timestamp at which the signature expires.","pattern":"^[0-9]+$","type":"string"},"from":{"description":"The address of the sender.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"nonce":{"description":"The current EIP-2612 nonce of the sender.","pattern":"^[0-9]+$","type":"string"},"signature":{"description":"The 65-byte concatenated signature (r, s, v) as a hex string.","pattern":"^0x[a-fA-F0-9]+$","type":"string"},"spender":{"description":"The address of the spender (Canonical Permit2).","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"version":{"description":"Schema version identifier.","pattern":"^[0-9]+(\\.[0-9]+)*$","type":"string"}},"required":["from","asset","spender","amount","nonce","deadline","signature","version"],"type":"object"}},"erc20ApprovalGasSponsoring":{"info":{"description":"The facilitator accepts a raw signed approval transaction and will sponsor the gas fees.","version":"1"},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"amount":{"description":"Approval amount (uint256).","pattern":"^[0-9]+$","type":"string"},"asset":{"description":"The ERC-20 token contract address to approve.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"from":{"description":"The address of the sender.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"signedTransaction":{"description":"RLP-encoded signed transaction calling ERC20.approve().","pattern":"^0x[a-fA-F0-9]+$","type":"string"},"spender":{"description":"The address of the spender (Canonical Permit2).","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"version":{"description":"Schema version identifier.","pattern":"^[0-9]+(\\.[0-9]+)*$","type":"string"}},"required":["from","asset","spender","amount","signedTransaction","version"],"type":"object"}},"offer-receipt":{"info":{"offers":[{"acceptIndex":0,"format":"eip712","payload":{"amount":"20000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","network":"eip155:8453","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/diversity","scheme":"exact","validUntil":1789032643,"version":1},"signature":"0xc14ad78fe1f76f83d37b069c00958a9f37342efaf07a245275efe8ae72ba26932f6a18c8ddcb739b5a99c26e21727dec087b6071ebcaf88672bd195f5bfaf3fb1b"},{"acceptIndex":1,"format":"eip712","payload":{"amount":"20000","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","network":"eip155:137","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/diversity","scheme":"exact","validUntil":1789032643,"version":1},"signature":"0xcf983dfeed13ca46643d9624ec843e0425cea4294e4e84a47c437862c3d826a2098a2ee6096d028b46520145f28f69f55c67e638f8691f65a677c8c75043c21e1b"},{"acceptIndex":2,"format":"eip712","payload":{"amount":"20000","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","network":"eip155:42161","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/diversity","scheme":"exact","validUntil":1789032643,"version":1},"signature":"0x14360102dcbe0ea5a8d6635cb869b9644cd37d3b9749c63c38a70b7489fbee716861c3e0507e0a4d43afc0924f849cb21c657617906a0c679fdd0bcc81b370ce1c"},{"acceptIndex":3,"format":"eip712","payload":{"amount":"20000","asset":"0x79A02482A880bCE3F13e09Da970dC34db4CD24d1","network":"eip155:480","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/diversity","scheme":"exact","validUntil":1789032643,"version":1},"signature":"0x6ed209dacf30f7e1a4dc14fc3f46429e234bbfd29d69bf90118d5aa9e4ad6f8f156ba43fb60a5ad3b4e7dc3e4dddaf0385888460b0cbfc50432b3a0235f0fda41c"},{"acceptIndex":4,"format":"eip712","payload":{"amount":"20000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","payTo":"GgS891nMiEETjBEFw1QQxVcAqsRV34mDYpxh24TrpCiD","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/diversity","scheme":"exact","validUntil":1789032643,"version":1},"signature":"0xd6e7de0608d717a8cc780cf26ace758db7c5bb82389b105f69669a9dd5d5c566734c9c87cc777a8b0ac0b5d7445f4d49baaafda55c1edaed2a0c6b397eb0aafe1c"},{"acceptIndex":5,"format":"eip712","payload":{"amount":"20000","asset":"31566704","network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","payTo":"5GRGZVUNRF2S4BY2TNRBCUCKUOT3H6BP56ACPCZVGR3ISTTRRSSB2RGJGI","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/diversity","scheme":"exact","validUntil":1789032643,"version":1},"signature":"0xc83b0ddca4af3a43189593c767d6e5d331859c662cf1202ec1f802565795edb864b053f66fcc3fe62613f8841ca39565c41bbcf11ca43c60f30218bb8a4d35d71c"},{"acceptIndex":6,"format":"eip712","payload":{"amount":"200000","asset":"USDC:GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN","network":"stellar:pubnet","payTo":"GDYFWCUFLG7MZAITOOVITYDNCLVJXWJ7OASYJAJPPOTONUQRNBCRO2VP","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/diversity","scheme":"exact","validUntil":1789032643,"version":1},"signature":"0xd86f0396aadf16b2d5afaf7fbf14f68adb2a465d801e81f922293cdae46140ab7457f0dac2dcc50deff311e1164e39331b630e1daf7fe4d094bd74e3de5a1c301b"}]},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"format":{"enum":["eip712","jws"],"type":"string"},"payload":{"type":"object"},"signature":{"type":"string"}},"required":["format","payload","signature"],"type":"object"}},"payment-identifier":{"info":{"required":false},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"id":{"maxLength":128,"minLength":16,"pattern":"^[a-zA-Z0-9_-]+$","type":"string"},"required":{"type":"boolean"}},"required":["required"],"type":"object"}}},"tags":["bazaar","eip2612GasSponsoring","erc20ApprovalGasSponsoring","offer-receipt","payment-identifier"],"sourceHost":"api.carbon-cashmere.de","lastUpdated":"2026-09-10T08:30:43.682Z","quality":{"calls30d":2,"uniquePayers30d":2,"lastCalledAt":"2026-09-10T08:30:43.16Z"},"liveness":{},"verified":false,"featured":false},{"id":12562,"slug":"12562","resource":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/fee-estimate","description":"Kaspa live fee market: priority/normal/low feerate buckets from the node's own estimator (Toccata RPC). Informational research data — not investment advice.","type":"http","x402Version":2,"accepts":[{"scheme":"exact","network":"eip155:8453","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","amount":"30000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:137","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","amount":"30000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:42161","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","amount":"30000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:480","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x79A02482A880bCE3F13e09Da970dC34db4CD24d1","amount":"30000","maxTimeoutSeconds":300},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","payTo":"GgS891nMiEETjBEFw1QQxVcAqsRV34mDYpxh24TrpCiD","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","amount":"30000","maxTimeoutSeconds":300},{"scheme":"exact","network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","payTo":"5GRGZVUNRF2S4BY2TNRBCUCKUOT3H6BP56ACPCZVGR3ISTTRRSSB2RGJGI","asset":"31566704","amount":"30000","maxTimeoutSeconds":300},{"scheme":"exact","network":"stellar:pubnet","payTo":"GDYFWCUFLG7MZAITOOVITYDNCLVJXWJ7OASYJAJPPOTONUQRNBCRO2VP","asset":"USDC:GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN","amount":"300000","maxTimeoutSeconds":300}],"outputSchema":{"bazaar":{"info":{"input":{"method":"GET","type":"http"},"output":{"example":{},"type":"json"}},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"properties":{},"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"properties":{"feerate_sompi_per_gram":{"type":"object"}},"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"}},"eip2612GasSponsoring":{"info":{"description":"The facilitator accepts EIP-2612 gasless Permit to Permit2 canonical contract.","version":"1"},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"amount":{"description":"The amount to approve (uint256).","pattern":"^[0-9]+$","type":"string"},"asset":{"description":"The address of the ERC-20 token contract.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"deadline":{"description":"The timestamp at which the signature expires.","pattern":"^[0-9]+$","type":"string"},"from":{"description":"The address of the sender.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"nonce":{"description":"The current EIP-2612 nonce of the sender.","pattern":"^[0-9]+$","type":"string"},"signature":{"description":"The 65-byte concatenated signature (r, s, v) as a hex string.","pattern":"^0x[a-fA-F0-9]+$","type":"string"},"spender":{"description":"The address of the spender (Canonical Permit2).","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"version":{"description":"Schema version identifier.","pattern":"^[0-9]+(\\.[0-9]+)*$","type":"string"}},"required":["from","asset","spender","amount","nonce","deadline","signature","version"],"type":"object"}},"erc20ApprovalGasSponsoring":{"info":{"description":"The facilitator accepts a raw signed approval transaction and will sponsor the gas fees.","version":"1"},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"amount":{"description":"Approval amount (uint256).","pattern":"^[0-9]+$","type":"string"},"asset":{"description":"The ERC-20 token contract address to approve.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"from":{"description":"The address of the sender.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"signedTransaction":{"description":"RLP-encoded signed transaction calling ERC20.approve().","pattern":"^0x[a-fA-F0-9]+$","type":"string"},"spender":{"description":"The address of the spender (Canonical Permit2).","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"version":{"description":"Schema version identifier.","pattern":"^[0-9]+(\\.[0-9]+)*$","type":"string"}},"required":["from","asset","spender","amount","signedTransaction","version"],"type":"object"}},"offer-receipt":{"info":{"offers":[{"acceptIndex":0,"format":"eip712","payload":{"amount":"30000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","network":"eip155:8453","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/fee-estimate","scheme":"exact","validUntil":1789174275,"version":1},"signature":"0xe55b9e2c35ed44cf804a7fc7585f051fd133cb4af6cd3a99452d26ab6437dbb4323ac0947464c9f8420df17da5b07e9829943c6feefe100947ced43dda939e501c"},{"acceptIndex":1,"format":"eip712","payload":{"amount":"30000","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","network":"eip155:137","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/fee-estimate","scheme":"exact","validUntil":1789174275,"version":1},"signature":"0xf9d4e9520d1cc85c9b7af20feaa8f984c7671b0518a407c36ff100ebd5969833481e7e62ccfdaaf6320642dcc50090b26f38c872ad0afae74b9732bc229f79d71b"},{"acceptIndex":2,"format":"eip712","payload":{"amount":"30000","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","network":"eip155:42161","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/fee-estimate","scheme":"exact","validUntil":1789174275,"version":1},"signature":"0xce2a2df72293682aaff73f122720ee08292322bf88d4c9a2a5b1a71568352fdf590a5434077c2857acbfe157847641b211348f5abe39d00e6c2b6de725676ae61b"},{"acceptIndex":3,"format":"eip712","payload":{"amount":"30000","asset":"0x79A02482A880bCE3F13e09Da970dC34db4CD24d1","network":"eip155:480","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/fee-estimate","scheme":"exact","validUntil":1789174275,"version":1},"signature":"0xf7d541935634903c423173a8bae027b66aa3ac05d391654768c0bebf3774be833521474088f993571904f589b95f142094a426ab3d760096e04c4bdc59a53dda1b"},{"acceptIndex":4,"format":"eip712","payload":{"amount":"30000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","payTo":"GgS891nMiEETjBEFw1QQxVcAqsRV34mDYpxh24TrpCiD","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/fee-estimate","scheme":"exact","validUntil":1789174275,"version":1},"signature":"0x9f256d15ad687133f8a4955fa8d06b7ced79caa7f9d3f636c5315d25787026e01af21cf6c59316e09d740637754bbe6d5ace4b10ebde6f6a6b7ebc15407d63eb1c"},{"acceptIndex":5,"format":"eip712","payload":{"amount":"30000","asset":"31566704","network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","payTo":"5GRGZVUNRF2S4BY2TNRBCUCKUOT3H6BP56ACPCZVGR3ISTTRRSSB2RGJGI","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/fee-estimate","scheme":"exact","validUntil":1789174275,"version":1},"signature":"0x395e2b070b79a4cfbfcce28824d4d164b389fdff5abfb91a08ff3c99788a37585a360e9acd3450c1e72efc41a2833741e72e3cc203801ac58bae29518ddb40661b"},{"acceptIndex":6,"format":"eip712","payload":{"amount":"300000","asset":"USDC:GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN","network":"stellar:pubnet","payTo":"GDYFWCUFLG7MZAITOOVITYDNCLVJXWJ7OASYJAJPPOTONUQRNBCRO2VP","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/fee-estimate","scheme":"exact","validUntil":1789174275,"version":1},"signature":"0x42e013c91847e87c390ec8660a6e714ecb58e816771831ec763bbeb53c9cbb803f0a5042c0aa8ad3f5976892e0ce49249464f6ea5ef8947cd1027aaedc6a2c141b"}]},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"format":{"enum":["eip712","jws"],"type":"string"},"payload":{"type":"object"},"signature":{"type":"string"}},"required":["format","payload","signature"],"type":"object"}},"payment-identifier":{"info":{"required":false},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"id":{"maxLength":128,"minLength":16,"pattern":"^[a-zA-Z0-9_-]+$","type":"string"},"required":{"type":"boolean"}},"required":["required"],"type":"object"}}},"tags":["bazaar","eip2612GasSponsoring","erc20ApprovalGasSponsoring","offer-receipt","payment-identifier"],"sourceHost":"api.carbon-cashmere.de","lastUpdated":"2026-09-11T23:51:15.732Z","quality":{"calls30d":1,"uniquePayers30d":1,"lastCalledAt":"2026-09-11T23:51:15.503Z"},"liveness":{},"verified":false,"featured":false},{"id":12563,"slug":"12563","resource":"https://api.carbon-cashmere.de/v1/bittensor-derivatives/subnet/:netuid/metagraph","description":"Full metagraph snapshot for 13 tracked Bittensor subnets [1,3,4,13,15,18,26,56,62,64,91,120,123]: summary stats + all neurons with stake/incentive/dividends/emission/trust/validator_permit.","type":"http","x402Version":2,"accepts":[{"scheme":"exact","network":"eip155:8453","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","amount":"50000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:137","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","amount":"50000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:42161","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","amount":"50000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:480","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x79A02482A880bCE3F13e09Da970dC34db4CD24d1","amount":"50000","maxTimeoutSeconds":300},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","payTo":"GgS891nMiEETjBEFw1QQxVcAqsRV34mDYpxh24TrpCiD","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","amount":"50000","maxTimeoutSeconds":300},{"scheme":"exact","network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","payTo":"5GRGZVUNRF2S4BY2TNRBCUCKUOT3H6BP56ACPCZVGR3ISTTRRSSB2RGJGI","asset":"31566704","amount":"50000","maxTimeoutSeconds":300},{"scheme":"exact","network":"stellar:pubnet","payTo":"GDYFWCUFLG7MZAITOOVITYDNCLVJXWJ7OASYJAJPPOTONUQRNBCRO2VP","asset":"USDC:GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN","amount":"500000","maxTimeoutSeconds":300}],"outputSchema":{"bazaar":{"info":{"input":{"method":"GET","pathParams":{"netuid":"1"},"type":"http"},"output":{"example":{},"type":"json"}},"routeTemplate":"/v1/bittensor-derivatives/subnet/:netuid/metagraph","schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"pathParams":{"additionalProperties":false,"properties":{"netuid":{"description":"Bittensor subnet UID (0-511) as URL path segment.","examples":["3","64","123"],"pattern":"^\\d{1,3}$","type":"string"}},"required":["netuid"],"type":"object"},"queryParams":{"properties":{},"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"}},"eip2612GasSponsoring":{"info":{"description":"The facilitator accepts EIP-2612 gasless Permit to Permit2 canonical contract.","version":"1"},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"amount":{"description":"The amount to approve (uint256).","pattern":"^[0-9]+$","type":"string"},"asset":{"description":"The address of the ERC-20 token contract.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"deadline":{"description":"The timestamp at which the signature expires.","pattern":"^[0-9]+$","type":"string"},"from":{"description":"The address of the sender.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"nonce":{"description":"The current EIP-2612 nonce of the sender.","pattern":"^[0-9]+$","type":"string"},"signature":{"description":"The 65-byte concatenated signature (r, s, v) as a hex string.","pattern":"^0x[a-fA-F0-9]+$","type":"string"},"spender":{"description":"The address of the spender (Canonical Permit2).","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"version":{"description":"Schema version identifier.","pattern":"^[0-9]+(\\.[0-9]+)*$","type":"string"}},"required":["from","asset","spender","amount","nonce","deadline","signature","version"],"type":"object"}},"erc20ApprovalGasSponsoring":{"info":{"description":"The facilitator accepts a raw signed approval transaction and will sponsor the gas fees.","version":"1"},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"amount":{"description":"Approval amount (uint256).","pattern":"^[0-9]+$","type":"string"},"asset":{"description":"The ERC-20 token contract address to approve.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"from":{"description":"The address of the sender.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"signedTransaction":{"description":"RLP-encoded signed transaction calling ERC20.approve().","pattern":"^0x[a-fA-F0-9]+$","type":"string"},"spender":{"description":"The address of the spender (Canonical Permit2).","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"version":{"description":"Schema version identifier.","pattern":"^[0-9]+(\\.[0-9]+)*$","type":"string"}},"required":["from","asset","spender","amount","signedTransaction","version"],"type":"object"}},"offer-receipt":{"info":{"offers":[{"acceptIndex":0,"format":"eip712","payload":{"amount":"50000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","network":"eip155:8453","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/bittensor-derivatives/subnet/1/metagraph","scheme":"exact","validUntil":1789174272,"version":1},"signature":"0x140773b9f54936c726aa27464397e20e272f6818e291d3f5ba004731f4560cc1761607b5addb038091af1ced316d955415147a05978d93ea0b61dc6e6d43163d1c"},{"acceptIndex":1,"format":"eip712","payload":{"amount":"50000","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","network":"eip155:137","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/bittensor-derivatives/subnet/1/metagraph","scheme":"exact","validUntil":1789174272,"version":1},"signature":"0xb192e1dbe4eda0d2f43ccf2da8b4696487499776def4d700382ca3b79036e76715b45a8552e8e1f3ebf6b9da5a3b6dfaa6976a3d81721302594a1e55e4bbdd6e1b"},{"acceptIndex":2,"format":"eip712","payload":{"amount":"50000","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","network":"eip155:42161","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/bittensor-derivatives/subnet/1/metagraph","scheme":"exact","validUntil":1789174272,"version":1},"signature":"0xf3ae16130d25b69325bd9624b9933c068c053372f16bd33fcdf762835d096e1a359fdb38e68b0e9892c481c40cee2bb09313fcd1546ce8f58b40c9157d374df31c"},{"acceptIndex":3,"format":"eip712","payload":{"amount":"50000","asset":"0x79A02482A880bCE3F13e09Da970dC34db4CD24d1","network":"eip155:480","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/bittensor-derivatives/subnet/1/metagraph","scheme":"exact","validUntil":1789174272,"version":1},"signature":"0x9d3da3f166b5a582a86fe542f0a7190a60fdee38f2c4763f7e2661301f2bff8420e56ed3c350c053db254b009dbb5f1352bd37d48b0df8d373d31d76241d4b4a1c"},{"acceptIndex":4,"format":"eip712","payload":{"amount":"50000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","payTo":"GgS891nMiEETjBEFw1QQxVcAqsRV34mDYpxh24TrpCiD","resourceUrl":"https://api.carbon-cashmere.de/v1/bittensor-derivatives/subnet/1/metagraph","scheme":"exact","validUntil":1789174272,"version":1},"signature":"0x58a7bc818a0c008973e0986ac23b94a54e3e93bcc1b670ab9b996cbf0f5364cc5e2ececcd829078f7fa3dac9a953f8205e1f8e19a4e105a1bc55932a97645fda1b"},{"acceptIndex":5,"format":"eip712","payload":{"amount":"50000","asset":"31566704","network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","payTo":"5GRGZVUNRF2S4BY2TNRBCUCKUOT3H6BP56ACPCZVGR3ISTTRRSSB2RGJGI","resourceUrl":"https://api.carbon-cashmere.de/v1/bittensor-derivatives/subnet/1/metagraph","scheme":"exact","validUntil":1789174272,"version":1},"signature":"0x69d90024b8998966ac4f103388cc79c96dd8c445c747b3cd0b00511240adf1800767f5e370cb7e4d1a59668ca347eab509d4dc15346026694d8bee9d039517931c"},{"acceptIndex":6,"format":"eip712","payload":{"amount":"500000","asset":"USDC:GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN","network":"stellar:pubnet","payTo":"GDYFWCUFLG7MZAITOOVITYDNCLVJXWJ7OASYJAJPPOTONUQRNBCRO2VP","resourceUrl":"https://api.carbon-cashmere.de/v1/bittensor-derivatives/subnet/1/metagraph","scheme":"exact","validUntil":1789174272,"version":1},"signature":"0x2b2ed1b5d1bb941aa7c74e6020fd705c0497eb676ee3a87b83a2c21b273766854bbaeb96e2a81674b0ce536e2c0000767fd68bb5951aa4516905d895f6a577701c"}]},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"format":{"enum":["eip712","jws"],"type":"string"},"payload":{"type":"object"},"signature":{"type":"string"}},"required":["format","payload","signature"],"type":"object"}},"payment-identifier":{"info":{"required":false},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"id":{"maxLength":128,"minLength":16,"pattern":"^[a-zA-Z0-9_-]+$","type":"string"},"required":{"type":"boolean"}},"required":["required"],"type":"object"}}},"tags":["bazaar","eip2612GasSponsoring","erc20ApprovalGasSponsoring","offer-receipt","payment-identifier"],"sourceHost":"api.carbon-cashmere.de","lastUpdated":"2026-09-11T23:51:12.623Z","quality":{"calls30d":1,"uniquePayers30d":1,"lastCalledAt":"2026-09-11T23:51:12.005Z"},"liveness":{},"verified":false,"featured":false},{"id":12564,"slug":"12564","resource":"https://api.carbon-cashmere.de/v1/subtensor-derivatives/evm-activity","description":"EVM-on-Bittensor Ethereum.Executed call count per hour. Tracks TaoEVM dApp adoption. AI agent API for cross-VM adoption analysts. Informational research data — not investment advice.","type":"http","x402Version":2,"accepts":[{"scheme":"exact","network":"eip155:8453","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","amount":"50000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:137","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","amount":"50000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:42161","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","amount":"50000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:480","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x79A02482A880bCE3F13e09Da970dC34db4CD24d1","amount":"50000","maxTimeoutSeconds":300},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","payTo":"GgS891nMiEETjBEFw1QQxVcAqsRV34mDYpxh24TrpCiD","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","amount":"50000","maxTimeoutSeconds":300},{"scheme":"exact","network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","payTo":"5GRGZVUNRF2S4BY2TNRBCUCKUOT3H6BP56ACPCZVGR3ISTTRRSSB2RGJGI","asset":"31566704","amount":"50000","maxTimeoutSeconds":300},{"scheme":"exact","network":"stellar:pubnet","payTo":"GDYFWCUFLG7MZAITOOVITYDNCLVJXWJ7OASYJAJPPOTONUQRNBCRO2VP","asset":"USDC:GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN","amount":"500000","maxTimeoutSeconds":300}],"outputSchema":{"bazaar":{"info":{"input":{"method":"GET","type":"http"},"output":{"example":{},"type":"json"}},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"properties":{},"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"}},"eip2612GasSponsoring":{"info":{"description":"The facilitator accepts EIP-2612 gasless Permit to Permit2 canonical contract.","version":"1"},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"amount":{"description":"The amount to approve (uint256).","pattern":"^[0-9]+$","type":"string"},"asset":{"description":"The address of the ERC-20 token contract.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"deadline":{"description":"The timestamp at which the signature expires.","pattern":"^[0-9]+$","type":"string"},"from":{"description":"The address of the sender.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"nonce":{"description":"The current EIP-2612 nonce of the sender.","pattern":"^[0-9]+$","type":"string"},"signature":{"description":"The 65-byte concatenated signature (r, s, v) as a hex string.","pattern":"^0x[a-fA-F0-9]+$","type":"string"},"spender":{"description":"The address of the spender (Canonical Permit2).","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"version":{"description":"Schema version identifier.","pattern":"^[0-9]+(\\.[0-9]+)*$","type":"string"}},"required":["from","asset","spender","amount","nonce","deadline","signature","version"],"type":"object"}},"erc20ApprovalGasSponsoring":{"info":{"description":"The facilitator accepts a raw signed approval transaction and will sponsor the gas fees.","version":"1"},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"amount":{"description":"Approval amount (uint256).","pattern":"^[0-9]+$","type":"string"},"asset":{"description":"The ERC-20 token contract address to approve.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"from":{"description":"The address of the sender.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"signedTransaction":{"description":"RLP-encoded signed transaction calling ERC20.approve().","pattern":"^0x[a-fA-F0-9]+$","type":"string"},"spender":{"description":"The address of the spender (Canonical Permit2).","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"version":{"description":"Schema version identifier.","pattern":"^[0-9]+(\\.[0-9]+)*$","type":"string"}},"required":["from","asset","spender","amount","signedTransaction","version"],"type":"object"}},"offer-receipt":{"info":{"offers":[{"acceptIndex":0,"format":"eip712","payload":{"amount":"50000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","network":"eip155:8453","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/subtensor-derivatives/evm-activity","scheme":"exact","validUntil":1789174268,"version":1},"signature":"0x18a863347a0615a238c3145bfe4cbef51a01b8e7955c98fed87895af843807cc4c793a08542daab63f7d0a268b5b53f325f445d43bd9a8159aa9b40f808ff9c01c"},{"acceptIndex":1,"format":"eip712","payload":{"amount":"50000","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","network":"eip155:137","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/subtensor-derivatives/evm-activity","scheme":"exact","validUntil":1789174268,"version":1},"signature":"0xe2b14d90fb3a5213e963783f531f946ca15a78696f8304f85aae1c3a2cf3a4a81c19db5a125ceecc50172fb9de0c488f002e35461847df0082fa99c305ab6c131c"},{"acceptIndex":2,"format":"eip712","payload":{"amount":"50000","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","network":"eip155:42161","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/subtensor-derivatives/evm-activity","scheme":"exact","validUntil":1789174268,"version":1},"signature":"0xe8df337737467c49779ecfcd07d711ff8c92f2e1146a41a27be7c7b53c968ed72544ca33d710f5ffa7a86725203b0ee7a756cbe71a0fed9fbf54f9d78cc115a41b"},{"acceptIndex":3,"format":"eip712","payload":{"amount":"50000","asset":"0x79A02482A880bCE3F13e09Da970dC34db4CD24d1","network":"eip155:480","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/subtensor-derivatives/evm-activity","scheme":"exact","validUntil":1789174268,"version":1},"signature":"0xd872bb54e0812c6e7e25e651e81c01d495bf1378bb1183cbfeda56b0701d75d23e8069972e666d8ba20ba6c621f1401b483d60d7464d403de80d65af1f482b251c"},{"acceptIndex":4,"format":"eip712","payload":{"amount":"50000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","payTo":"GgS891nMiEETjBEFw1QQxVcAqsRV34mDYpxh24TrpCiD","resourceUrl":"https://api.carbon-cashmere.de/v1/subtensor-derivatives/evm-activity","scheme":"exact","validUntil":1789174268,"version":1},"signature":"0xb7ed2ce0a22975afaa7034c5434d95e978697023ae5fa8d18798f62c241d4eab0bd900d9c46673600732d6704734c617951b36efd3e88d1e24d01f6235d3ba7c1c"},{"acceptIndex":5,"format":"eip712","payload":{"amount":"50000","asset":"31566704","network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","payTo":"5GRGZVUNRF2S4BY2TNRBCUCKUOT3H6BP56ACPCZVGR3ISTTRRSSB2RGJGI","resourceUrl":"https://api.carbon-cashmere.de/v1/subtensor-derivatives/evm-activity","scheme":"exact","validUntil":1789174268,"version":1},"signature":"0x38dd4a4f1e559392d8bc13317e6eb5bd1cf6dfc681e234287697d9789c17ae1b1feb46b451ede47856fa64754323e4ce17716652fb1a742a19e9768cd540c0e61c"},{"acceptIndex":6,"format":"eip712","payload":{"amount":"500000","asset":"USDC:GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN","network":"stellar:pubnet","payTo":"GDYFWCUFLG7MZAITOOVITYDNCLVJXWJ7OASYJAJPPOTONUQRNBCRO2VP","resourceUrl":"https://api.carbon-cashmere.de/v1/subtensor-derivatives/evm-activity","scheme":"exact","validUntil":1789174268,"version":1},"signature":"0x3214aede56c2e4b7a477643b70d3f65818b3fbd68f4910ae3c76cfab771f0e9069379e30caafcef6871ef9a21f215b0a9551b4887e6e55bae943be4ac788bb451b"}]},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"format":{"enum":["eip712","jws"],"type":"string"},"payload":{"type":"object"},"signature":{"type":"string"}},"required":["format","payload","signature"],"type":"object"}},"payment-identifier":{"info":{"required":false},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"id":{"maxLength":128,"minLength":16,"pattern":"^[a-zA-Z0-9_-]+$","type":"string"},"required":{"type":"boolean"}},"required":["required"],"type":"object"}}},"tags":["bazaar","eip2612GasSponsoring","erc20ApprovalGasSponsoring","offer-receipt","payment-identifier"],"sourceHost":"api.carbon-cashmere.de","lastUpdated":"2026-09-11T23:51:08.146Z","quality":{"calls30d":1,"uniquePayers30d":1,"lastCalledAt":"2026-09-11T23:51:07.943Z"},"liveness":{},"verified":false,"featured":false},{"id":12565,"slug":"12565","resource":"https://api.carbon-cashmere.de/v1/subtensor-derivatives/transfer-flow","description":"Bittensor BalancesTransfer count + total TAO volume per hour. AI agent API for TAO whale-watch and treasury-movement monitoring. Informational research data — not investment advice.","type":"http","x402Version":2,"accepts":[{"scheme":"exact","network":"eip155:8453","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","amount":"50000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:137","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","amount":"50000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:42161","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","amount":"50000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:480","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x79A02482A880bCE3F13e09Da970dC34db4CD24d1","amount":"50000","maxTimeoutSeconds":300},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","payTo":"GgS891nMiEETjBEFw1QQxVcAqsRV34mDYpxh24TrpCiD","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","amount":"50000","maxTimeoutSeconds":300},{"scheme":"exact","network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","payTo":"5GRGZVUNRF2S4BY2TNRBCUCKUOT3H6BP56ACPCZVGR3ISTTRRSSB2RGJGI","asset":"31566704","amount":"50000","maxTimeoutSeconds":300},{"scheme":"exact","network":"stellar:pubnet","payTo":"GDYFWCUFLG7MZAITOOVITYDNCLVJXWJ7OASYJAJPPOTONUQRNBCRO2VP","asset":"USDC:GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN","amount":"500000","maxTimeoutSeconds":300}],"outputSchema":{"bazaar":{"info":{"input":{"method":"GET","type":"http"},"output":{"example":{},"type":"json"}},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"properties":{},"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"}},"eip2612GasSponsoring":{"info":{"description":"The facilitator accepts EIP-2612 gasless Permit to Permit2 canonical contract.","version":"1"},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"amount":{"description":"The amount to approve (uint256).","pattern":"^[0-9]+$","type":"string"},"asset":{"description":"The address of the ERC-20 token contract.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"deadline":{"description":"The timestamp at which the signature expires.","pattern":"^[0-9]+$","type":"string"},"from":{"description":"The address of the sender.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"nonce":{"description":"The current EIP-2612 nonce of the sender.","pattern":"^[0-9]+$","type":"string"},"signature":{"description":"The 65-byte concatenated signature (r, s, v) as a hex string.","pattern":"^0x[a-fA-F0-9]+$","type":"string"},"spender":{"description":"The address of the spender (Canonical Permit2).","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"version":{"description":"Schema version identifier.","pattern":"^[0-9]+(\\.[0-9]+)*$","type":"string"}},"required":["from","asset","spender","amount","nonce","deadline","signature","version"],"type":"object"}},"erc20ApprovalGasSponsoring":{"info":{"description":"The facilitator accepts a raw signed approval transaction and will sponsor the gas fees.","version":"1"},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"amount":{"description":"Approval amount (uint256).","pattern":"^[0-9]+$","type":"string"},"asset":{"description":"The ERC-20 token contract address to approve.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"from":{"description":"The address of the sender.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"signedTransaction":{"description":"RLP-encoded signed transaction calling ERC20.approve().","pattern":"^0x[a-fA-F0-9]+$","type":"string"},"spender":{"description":"The address of the spender (Canonical Permit2).","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"version":{"description":"Schema version identifier.","pattern":"^[0-9]+(\\.[0-9]+)*$","type":"string"}},"required":["from","asset","spender","amount","signedTransaction","version"],"type":"object"}},"offer-receipt":{"info":{"offers":[{"acceptIndex":0,"format":"eip712","payload":{"amount":"50000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","network":"eip155:8453","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/subtensor-derivatives/transfer-flow","scheme":"exact","validUntil":1789174254,"version":1},"signature":"0xc66f249ba652d45a958dbde6d29fe14269adb22ad4f60c5d8278d2f44d468bcf764a930ce9fbf820adb129133587541232b25383c826e38ef028ede750e21ad71c"},{"acceptIndex":1,"format":"eip712","payload":{"amount":"50000","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","network":"eip155:137","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/subtensor-derivatives/transfer-flow","scheme":"exact","validUntil":1789174254,"version":1},"signature":"0x6a13ec10258ad1db2e38a0d7ef3674b073ca16ffdd1fa232d25694a2e4c891cc68df2e9db04e4afa913f6cb6aa5557d1824ccf503d7c5791f0d98f4ba9ff9ac91c"},{"acceptIndex":2,"format":"eip712","payload":{"amount":"50000","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","network":"eip155:42161","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/subtensor-derivatives/transfer-flow","scheme":"exact","validUntil":1789174254,"version":1},"signature":"0x49f9925214cee2df4f415540f28580d2355e1f996bd03afdbbb95fdcaf3def525727c29f1d834c25482998ade0e695daa23474dcf0459fe8161aa532efe98e271c"},{"acceptIndex":3,"format":"eip712","payload":{"amount":"50000","asset":"0x79A02482A880bCE3F13e09Da970dC34db4CD24d1","network":"eip155:480","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/subtensor-derivatives/transfer-flow","scheme":"exact","validUntil":1789174254,"version":1},"signature":"0xadef330ac06cb8b26cf19677d54537222fdc137dd97eedf4e11cdf74bcae9700461e8f191777d041a610a1008d55c5ebd6bdbbe33338037c510ec5d503f7b7241b"},{"acceptIndex":4,"format":"eip712","payload":{"amount":"50000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","payTo":"GgS891nMiEETjBEFw1QQxVcAqsRV34mDYpxh24TrpCiD","resourceUrl":"https://api.carbon-cashmere.de/v1/subtensor-derivatives/transfer-flow","scheme":"exact","validUntil":1789174254,"version":1},"signature":"0xc488c874d54b2cdcdf58b971726d3fb36e7b25faab1702329598f1c81c1bca7f2ed2f1355212bf949c7b6f43dd02e97342156bc30661a217a3f7e5f0c2e1db0e1b"},{"acceptIndex":5,"format":"eip712","payload":{"amount":"50000","asset":"31566704","network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","payTo":"5GRGZVUNRF2S4BY2TNRBCUCKUOT3H6BP56ACPCZVGR3ISTTRRSSB2RGJGI","resourceUrl":"https://api.carbon-cashmere.de/v1/subtensor-derivatives/transfer-flow","scheme":"exact","validUntil":1789174254,"version":1},"signature":"0xe2e38e9aa8f4e84a66ed57a4d160d406b5c1a8f5012b604c08ea6bf089fa55c92a13c4490f036ab459f616e3c3c115a67016ef984d3492e246e1daf03f5a5c531b"},{"acceptIndex":6,"format":"eip712","payload":{"amount":"500000","asset":"USDC:GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN","network":"stellar:pubnet","payTo":"GDYFWCUFLG7MZAITOOVITYDNCLVJXWJ7OASYJAJPPOTONUQRNBCRO2VP","resourceUrl":"https://api.carbon-cashmere.de/v1/subtensor-derivatives/transfer-flow","scheme":"exact","validUntil":1789174254,"version":1},"signature":"0x406032669881859ef191bd077ecaf65f737b5f14b09b0adebac7733092a014a9482be2530e39864600a15afc6dc9c8221d8473fac853c7a54ea551161813922c1c"}]},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"format":{"enum":["eip712","jws"],"type":"string"},"payload":{"type":"object"},"signature":{"type":"string"}},"required":["format","payload","signature"],"type":"object"}},"payment-identifier":{"info":{"required":false},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"id":{"maxLength":128,"minLength":16,"pattern":"^[a-zA-Z0-9_-]+$","type":"string"},"required":{"type":"boolean"}},"required":["required"],"type":"object"}}},"tags":["bazaar","eip2612GasSponsoring","erc20ApprovalGasSponsoring","offer-receipt","payment-identifier"],"sourceHost":"api.carbon-cashmere.de","lastUpdated":"2026-09-11T23:50:54.694Z","quality":{"calls30d":1,"uniquePayers30d":1,"lastCalledAt":"2026-09-11T23:50:54.126Z"},"liveness":{},"verified":false,"featured":false},{"id":12566,"slug":"12566","resource":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/mining-economics","description":"Kaspa mining economics from our own archival node: KAS + USD revenue per TH/s/day, block subsidy measured live from coinbase payloads, DAG-aware emission rate, electricity-cost model with profit margin and breakeven price. Informational research data — not investment advice.","type":"http","x402Version":2,"accepts":[{"scheme":"exact","network":"eip155:8453","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","amount":"50000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:137","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","amount":"50000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:42161","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","amount":"50000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:480","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x79A02482A880bCE3F13e09Da970dC34db4CD24d1","amount":"50000","maxTimeoutSeconds":300},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","payTo":"GgS891nMiEETjBEFw1QQxVcAqsRV34mDYpxh24TrpCiD","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","amount":"50000","maxTimeoutSeconds":300},{"scheme":"exact","network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","payTo":"5GRGZVUNRF2S4BY2TNRBCUCKUOT3H6BP56ACPCZVGR3ISTTRRSSB2RGJGI","asset":"31566704","amount":"50000","maxTimeoutSeconds":300},{"scheme":"exact","network":"stellar:pubnet","payTo":"GDYFWCUFLG7MZAITOOVITYDNCLVJXWJ7OASYJAJPPOTONUQRNBCRO2VP","asset":"USDC:GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN","amount":"500000","maxTimeoutSeconds":300}],"outputSchema":{"bazaar":{"info":{"input":{"method":"GET","queryParams":{"electricity_cost_kwh":0.08},"type":"http"},"output":{"example":{},"type":"json"}},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"properties":{"electricity_cost_kwh":{"description":"Electricity cost in USD per kWh (default 0.08)","maximum":1,"minimum":0,"type":"number"}},"required":[],"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"properties":{"block_reward":{"type":"object"},"breakeven":{"type":"object"},"freshness":{"type":"object"},"miner_economics_per_thash":{"type":"object"},"network_state":{"type":"object"}},"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"}},"eip2612GasSponsoring":{"info":{"description":"The facilitator accepts EIP-2612 gasless Permit to Permit2 canonical contract.","version":"1"},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"amount":{"description":"The amount to approve (uint256).","pattern":"^[0-9]+$","type":"string"},"asset":{"description":"The address of the ERC-20 token contract.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"deadline":{"description":"The timestamp at which the signature expires.","pattern":"^[0-9]+$","type":"string"},"from":{"description":"The address of the sender.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"nonce":{"description":"The current EIP-2612 nonce of the sender.","pattern":"^[0-9]+$","type":"string"},"signature":{"description":"The 65-byte concatenated signature (r, s, v) as a hex string.","pattern":"^0x[a-fA-F0-9]+$","type":"string"},"spender":{"description":"The address of the spender (Canonical Permit2).","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"version":{"description":"Schema version identifier.","pattern":"^[0-9]+(\\.[0-9]+)*$","type":"string"}},"required":["from","asset","spender","amount","nonce","deadline","signature","version"],"type":"object"}},"erc20ApprovalGasSponsoring":{"info":{"description":"The facilitator accepts a raw signed approval transaction and will sponsor the gas fees.","version":"1"},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"amount":{"description":"Approval amount (uint256).","pattern":"^[0-9]+$","type":"string"},"asset":{"description":"The ERC-20 token contract address to approve.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"from":{"description":"The address of the sender.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"signedTransaction":{"description":"RLP-encoded signed transaction calling ERC20.approve().","pattern":"^0x[a-fA-F0-9]+$","type":"string"},"spender":{"description":"The address of the spender (Canonical Permit2).","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"version":{"description":"Schema version identifier.","pattern":"^[0-9]+(\\.[0-9]+)*$","type":"string"}},"required":["from","asset","spender","amount","signedTransaction","version"],"type":"object"}},"offer-receipt":{"info":{"offers":[{"acceptIndex":0,"format":"eip712","payload":{"amount":"50000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","network":"eip155:8453","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/mining-economics","scheme":"exact","validUntil":1789174248,"version":1},"signature":"0xa6b81a6e7d3fb00f1fd480b13ab49b202be91485976b582c99f49f23c13d83ea59e860d3b0440ff9db19f3504e516b07bb6e53d7ef6baed868a835ffa5f1b5811b"},{"acceptIndex":1,"format":"eip712","payload":{"amount":"50000","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","network":"eip155:137","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/mining-economics","scheme":"exact","validUntil":1789174248,"version":1},"signature":"0x22ac49426fb1cf6145b988e4821100109eae2dfb30601bd84fdb02187bb4e1875e5c84e8e52c8c22dd42b61f13712cfdcee211e606f884fa76aae740800f01921c"},{"acceptIndex":2,"format":"eip712","payload":{"amount":"50000","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","network":"eip155:42161","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/mining-economics","scheme":"exact","validUntil":1789174248,"version":1},"signature":"0x3593fea52f9dd2b85af759c91ada3ff04bd4dd50a46091953a8ebde81dd13980670a05419ae2f4b5ae79cb62640e5ddaaa319cf07a881562efab3728cfa109661b"},{"acceptIndex":3,"format":"eip712","payload":{"amount":"50000","asset":"0x79A02482A880bCE3F13e09Da970dC34db4CD24d1","network":"eip155:480","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/mining-economics","scheme":"exact","validUntil":1789174248,"version":1},"signature":"0x3b5c3469a7050a3a3b5177282cf9d693c0eb9cfbd60b7b5d589bdeb9eb5ea9a4267b654f0a9533a4328ec5512217d0e07ff29897557150b007785f7e0238440c1b"},{"acceptIndex":4,"format":"eip712","payload":{"amount":"50000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","payTo":"GgS891nMiEETjBEFw1QQxVcAqsRV34mDYpxh24TrpCiD","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/mining-economics","scheme":"exact","validUntil":1789174248,"version":1},"signature":"0x0bee18ef03bdd1957f37d578aa957c0fea6446af21457034be5ac84b809159783a8eee3cc7aa9a64ddfb53eb60e79bef22024d7b63b09f50f5b711a0fa8bf2f11c"},{"acceptIndex":5,"format":"eip712","payload":{"amount":"50000","asset":"31566704","network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","payTo":"5GRGZVUNRF2S4BY2TNRBCUCKUOT3H6BP56ACPCZVGR3ISTTRRSSB2RGJGI","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/mining-economics","scheme":"exact","validUntil":1789174248,"version":1},"signature":"0xabf7c6f1a6c4b381877cf30bc708cf8542e1908c9169a13b510ef03a12261d6937e7a752fd8a15477b211c5cfd82cc448beb15e9e182769f6739e163e7b9349e1b"},{"acceptIndex":6,"format":"eip712","payload":{"amount":"500000","asset":"USDC:GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN","network":"stellar:pubnet","payTo":"GDYFWCUFLG7MZAITOOVITYDNCLVJXWJ7OASYJAJPPOTONUQRNBCRO2VP","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/mining-economics","scheme":"exact","validUntil":1789174248,"version":1},"signature":"0x125aa67c8f7d45e0d8fe0904f38332b5bc9886195bc67ee976022a431afe996a1e3d8d4c6d0cd6e72582baacb850d569ba7aa332f979be26f53df0ab2ac82e791c"}]},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"format":{"enum":["eip712","jws"],"type":"string"},"payload":{"type":"object"},"signature":{"type":"string"}},"required":["format","payload","signature"],"type":"object"}},"payment-identifier":{"info":{"required":false},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"id":{"maxLength":128,"minLength":16,"pattern":"^[a-zA-Z0-9_-]+$","type":"string"},"required":{"type":"boolean"}},"required":["required"],"type":"object"}}},"tags":["bazaar","eip2612GasSponsoring","erc20ApprovalGasSponsoring","offer-receipt","payment-identifier"],"sourceHost":"api.carbon-cashmere.de","lastUpdated":"2026-09-11T23:50:48.564Z","quality":{"calls30d":1,"uniquePayers30d":1,"lastCalledAt":"2026-09-11T23:50:48.094Z"},"liveness":{},"verified":false,"featured":false},{"id":12567,"slug":"12567","resource":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/fee-regime","description":"Kaspa fee-market regime: fee-bucket distribution incl. the sub-floor segment the Toccata minimum displaces. Unique pre/post-hardfork fee analytics. Informational research data — not investment advice.","type":"http","x402Version":2,"accepts":[{"scheme":"exact","network":"eip155:8453","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","amount":"50000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:137","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","amount":"50000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:42161","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","amount":"50000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:480","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x79A02482A880bCE3F13e09Da970dC34db4CD24d1","amount":"50000","maxTimeoutSeconds":300},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","payTo":"GgS891nMiEETjBEFw1QQxVcAqsRV34mDYpxh24TrpCiD","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","amount":"50000","maxTimeoutSeconds":300},{"scheme":"exact","network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","payTo":"5GRGZVUNRF2S4BY2TNRBCUCKUOT3H6BP56ACPCZVGR3ISTTRRSSB2RGJGI","asset":"31566704","amount":"50000","maxTimeoutSeconds":300},{"scheme":"exact","network":"stellar:pubnet","payTo":"GDYFWCUFLG7MZAITOOVITYDNCLVJXWJ7OASYJAJPPOTONUQRNBCRO2VP","asset":"USDC:GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN","amount":"500000","maxTimeoutSeconds":300}],"outputSchema":{"bazaar":{"info":{"input":{"method":"GET","type":"http"},"output":{"example":{},"type":"json"}},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"properties":{},"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"properties":{"hourly":{"type":"array"},"summary":{"type":"object"}},"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"}},"eip2612GasSponsoring":{"info":{"description":"The facilitator accepts EIP-2612 gasless Permit to Permit2 canonical contract.","version":"1"},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"amount":{"description":"The amount to approve (uint256).","pattern":"^[0-9]+$","type":"string"},"asset":{"description":"The address of the ERC-20 token contract.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"deadline":{"description":"The timestamp at which the signature expires.","pattern":"^[0-9]+$","type":"string"},"from":{"description":"The address of the sender.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"nonce":{"description":"The current EIP-2612 nonce of the sender.","pattern":"^[0-9]+$","type":"string"},"signature":{"description":"The 65-byte concatenated signature (r, s, v) as a hex string.","pattern":"^0x[a-fA-F0-9]+$","type":"string"},"spender":{"description":"The address of the spender (Canonical Permit2).","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"version":{"description":"Schema version identifier.","pattern":"^[0-9]+(\\.[0-9]+)*$","type":"string"}},"required":["from","asset","spender","amount","nonce","deadline","signature","version"],"type":"object"}},"erc20ApprovalGasSponsoring":{"info":{"description":"The facilitator accepts a raw signed approval transaction and will sponsor the gas fees.","version":"1"},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"amount":{"description":"Approval amount (uint256).","pattern":"^[0-9]+$","type":"string"},"asset":{"description":"The ERC-20 token contract address to approve.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"from":{"description":"The address of the sender.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"signedTransaction":{"description":"RLP-encoded signed transaction calling ERC20.approve().","pattern":"^0x[a-fA-F0-9]+$","type":"string"},"spender":{"description":"The address of the spender (Canonical Permit2).","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"version":{"description":"Schema version identifier.","pattern":"^[0-9]+(\\.[0-9]+)*$","type":"string"}},"required":["from","asset","spender","amount","signedTransaction","version"],"type":"object"}},"offer-receipt":{"info":{"offers":[{"acceptIndex":0,"format":"eip712","payload":{"amount":"50000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","network":"eip155:8453","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/fee-regime","scheme":"exact","validUntil":1789174239,"version":1},"signature":"0x771d0616d83ac3b92c9e8176c8241b33aa0e5671a0bf3109b722938edf3b15c940f91012aedb581782e266e90c85e856a6515c2eb46ac38166df64390851c8831c"},{"acceptIndex":1,"format":"eip712","payload":{"amount":"50000","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","network":"eip155:137","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/fee-regime","scheme":"exact","validUntil":1789174239,"version":1},"signature":"0x752446db633c800a330eb7a00b45610d03966a8c3c3aa58865665bc542419c764c34db3174369a429de823990667d90a3269112af06808b2debdf2b0c51c2bfa1c"},{"acceptIndex":2,"format":"eip712","payload":{"amount":"50000","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","network":"eip155:42161","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/fee-regime","scheme":"exact","validUntil":1789174239,"version":1},"signature":"0x5c5ed0f55c92df03530efe7a1db3053cfe80ce8422c3b111a86135e672299f4f743ec7c7de8bcc48664c5ccc17d4fce8938bf08a4af74e8c1489c0ce6b9305101b"},{"acceptIndex":3,"format":"eip712","payload":{"amount":"50000","asset":"0x79A02482A880bCE3F13e09Da970dC34db4CD24d1","network":"eip155:480","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/fee-regime","scheme":"exact","validUntil":1789174239,"version":1},"signature":"0xce2a332ee07074a707f9bdedb7fce9087e850fa4aa19496b94e6ddb71a7d6781469342a931593af8eec7f058815c09d6c6dab70cba2c222e27f95e2d553d19f81c"},{"acceptIndex":4,"format":"eip712","payload":{"amount":"50000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","payTo":"GgS891nMiEETjBEFw1QQxVcAqsRV34mDYpxh24TrpCiD","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/fee-regime","scheme":"exact","validUntil":1789174239,"version":1},"signature":"0xa841892f47c644e79b755e2597f0f7174c03605719d77005abc6e5eff8f45d833dd66057eaee54fb6cabb8f97fc9a304f48756c08495e5ae31c701f87c2373d31c"},{"acceptIndex":5,"format":"eip712","payload":{"amount":"50000","asset":"31566704","network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","payTo":"5GRGZVUNRF2S4BY2TNRBCUCKUOT3H6BP56ACPCZVGR3ISTTRRSSB2RGJGI","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/fee-regime","scheme":"exact","validUntil":1789174239,"version":1},"signature":"0x69dda2c0bbc841f7224d43895e9ba733dbe68327e41e291319313ab4547a83cc4c3079650286b15bb2f39f5a79ff31f5491b64031aaa47d6167b3bbc9dca056c1b"},{"acceptIndex":6,"format":"eip712","payload":{"amount":"500000","asset":"USDC:GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN","network":"stellar:pubnet","payTo":"GDYFWCUFLG7MZAITOOVITYDNCLVJXWJ7OASYJAJPPOTONUQRNBCRO2VP","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/fee-regime","scheme":"exact","validUntil":1789174239,"version":1},"signature":"0xe70e5ea1fa70a4b14e6bb02f6add937d618f254c37f0c38ef843743c45c24a49591bc8af01f6e35aaed1ec0cfb125b60743460371163cbbb2e2c7799dcef9d651c"}]},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"format":{"enum":["eip712","jws"],"type":"string"},"payload":{"type":"object"},"signature":{"type":"string"}},"required":["format","payload","signature"],"type":"object"}},"payment-identifier":{"info":{"required":false},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"id":{"maxLength":128,"minLength":16,"pattern":"^[a-zA-Z0-9_-]+$","type":"string"},"required":{"type":"boolean"}},"required":["required"],"type":"object"}}},"tags":["bazaar","eip2612GasSponsoring","erc20ApprovalGasSponsoring","offer-receipt","payment-identifier"],"sourceHost":"api.carbon-cashmere.de","lastUpdated":"2026-09-11T23:50:40.03Z","quality":{"calls30d":1,"uniquePayers30d":1,"lastCalledAt":"2026-09-11T23:50:39.336Z"},"liveness":{},"verified":false,"featured":false},{"id":12568,"slug":"12568","resource":"https://api.carbon-cashmere.de/v1/subtensor-derivatives/block-metrics","description":"Recent per-block aggregation of Bittensor events: neuron_registrations, weight_sets, bond_sets, child_key_sets, stake_added/removed, root_claimed, balance_transfers + total TAO.","type":"http","x402Version":2,"accepts":[{"scheme":"exact","network":"eip155:8453","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:137","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:42161","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:480","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x79A02482A880bCE3F13e09Da970dC34db4CD24d1","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","payTo":"GgS891nMiEETjBEFw1QQxVcAqsRV34mDYpxh24TrpCiD","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","payTo":"5GRGZVUNRF2S4BY2TNRBCUCKUOT3H6BP56ACPCZVGR3ISTTRRSSB2RGJGI","asset":"31566704","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"stellar:pubnet","payTo":"GDYFWCUFLG7MZAITOOVITYDNCLVJXWJ7OASYJAJPPOTONUQRNBCRO2VP","asset":"USDC:GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN","amount":"200000","maxTimeoutSeconds":300}],"outputSchema":{"bazaar":{"info":{"input":{"method":"GET","type":"http"},"output":{"example":{},"type":"json"}},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"properties":{},"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"}},"eip2612GasSponsoring":{"info":{"description":"The facilitator accepts EIP-2612 gasless Permit to Permit2 canonical contract.","version":"1"},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"amount":{"description":"The amount to approve (uint256).","pattern":"^[0-9]+$","type":"string"},"asset":{"description":"The address of the ERC-20 token contract.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"deadline":{"description":"The timestamp at which the signature expires.","pattern":"^[0-9]+$","type":"string"},"from":{"description":"The address of the sender.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"nonce":{"description":"The current EIP-2612 nonce of the sender.","pattern":"^[0-9]+$","type":"string"},"signature":{"description":"The 65-byte concatenated signature (r, s, v) as a hex string.","pattern":"^0x[a-fA-F0-9]+$","type":"string"},"spender":{"description":"The address of the spender (Canonical Permit2).","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"version":{"description":"Schema version identifier.","pattern":"^[0-9]+(\\.[0-9]+)*$","type":"string"}},"required":["from","asset","spender","amount","nonce","deadline","signature","version"],"type":"object"}},"erc20ApprovalGasSponsoring":{"info":{"description":"The facilitator accepts a raw signed approval transaction and will sponsor the gas fees.","version":"1"},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"amount":{"description":"Approval amount (uint256).","pattern":"^[0-9]+$","type":"string"},"asset":{"description":"The ERC-20 token contract address to approve.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"from":{"description":"The address of the sender.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"signedTransaction":{"description":"RLP-encoded signed transaction calling ERC20.approve().","pattern":"^0x[a-fA-F0-9]+$","type":"string"},"spender":{"description":"The address of the spender (Canonical Permit2).","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"version":{"description":"Schema version identifier.","pattern":"^[0-9]+(\\.[0-9]+)*$","type":"string"}},"required":["from","asset","spender","amount","signedTransaction","version"],"type":"object"}},"offer-receipt":{"info":{"offers":[{"acceptIndex":0,"format":"eip712","payload":{"amount":"20000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","network":"eip155:8453","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/subtensor-derivatives/block-metrics","scheme":"exact","validUntil":1789174236,"version":1},"signature":"0xf81840dc1a5a0b7d633d5e61538a4586e653aaebc62d241a74b897b6428ed1215fd65fef823332eabf5cdd241851618ff4c2f8144d6b94befefed9360095ad361c"},{"acceptIndex":1,"format":"eip712","payload":{"amount":"20000","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","network":"eip155:137","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/subtensor-derivatives/block-metrics","scheme":"exact","validUntil":1789174236,"version":1},"signature":"0xe905e9b3cd8da804138d3909315b232a21009912726601f674429fd721e11d482f250f2bf6605d2c491c08e2e3ea273f7ec4e3d45ba986c9ad70bd71435357d71b"},{"acceptIndex":2,"format":"eip712","payload":{"amount":"20000","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","network":"eip155:42161","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/subtensor-derivatives/block-metrics","scheme":"exact","validUntil":1789174236,"version":1},"signature":"0x142330df14b705a346307c5579bf43cb9823fa81bb97d7d2a71b7e8e2b6f9ebe361e5867c349869d76e09d4089e9739370213089efb21036fa93c471f4f6d29d1b"},{"acceptIndex":3,"format":"eip712","payload":{"amount":"20000","asset":"0x79A02482A880bCE3F13e09Da970dC34db4CD24d1","network":"eip155:480","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/subtensor-derivatives/block-metrics","scheme":"exact","validUntil":1789174236,"version":1},"signature":"0x730bafd3b26a00e53d78ad2f9f97a1398f342ae4cbe895015ee5f9a12d92446511381add502715f76d167a556d8711226134bbfeb717fe29de68e51a0f492c861c"},{"acceptIndex":4,"format":"eip712","payload":{"amount":"20000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","payTo":"GgS891nMiEETjBEFw1QQxVcAqsRV34mDYpxh24TrpCiD","resourceUrl":"https://api.carbon-cashmere.de/v1/subtensor-derivatives/block-metrics","scheme":"exact","validUntil":1789174236,"version":1},"signature":"0x5cf5f9855d3678196ebfbf23ee9e8848806100817c458a82fa066136fff55f7703439c1c90706c947d05137832c7da7907ab072016bcb0d36a9a298a771849bd1b"},{"acceptIndex":5,"format":"eip712","payload":{"amount":"20000","asset":"31566704","network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","payTo":"5GRGZVUNRF2S4BY2TNRBCUCKUOT3H6BP56ACPCZVGR3ISTTRRSSB2RGJGI","resourceUrl":"https://api.carbon-cashmere.de/v1/subtensor-derivatives/block-metrics","scheme":"exact","validUntil":1789174236,"version":1},"signature":"0xb109a79144706d4b976e8419e4af95cc51fca3e9e480c6c826a559dcf2761e6e632deb6c68a215c4ef21a8c53240b1e359eb31c1d21316e1bb44c48cf85742c51c"},{"acceptIndex":6,"format":"eip712","payload":{"amount":"200000","asset":"USDC:GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN","network":"stellar:pubnet","payTo":"GDYFWCUFLG7MZAITOOVITYDNCLVJXWJ7OASYJAJPPOTONUQRNBCRO2VP","resourceUrl":"https://api.carbon-cashmere.de/v1/subtensor-derivatives/block-metrics","scheme":"exact","validUntil":1789174236,"version":1},"signature":"0x81ac2ab622f855ef8be1c54b6bd75d64606f158636f3f502b41a982ba4616338442a2fdaa55386d82dd94aa724bafc5f11cee4a0451d202ec5cf57fe260ee8051c"}]},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"format":{"enum":["eip712","jws"],"type":"string"},"payload":{"type":"object"},"signature":{"type":"string"}},"required":["format","payload","signature"],"type":"object"}},"payment-identifier":{"info":{"required":false},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"id":{"maxLength":128,"minLength":16,"pattern":"^[a-zA-Z0-9_-]+$","type":"string"},"required":{"type":"boolean"}},"required":["required"],"type":"object"}}},"tags":["bazaar","eip2612GasSponsoring","erc20ApprovalGasSponsoring","offer-receipt","payment-identifier"],"sourceHost":"api.carbon-cashmere.de","lastUpdated":"2026-09-11T23:50:36.673Z","quality":{"calls30d":1,"uniquePayers30d":1,"lastCalledAt":"2026-09-11T23:50:36.016Z"},"liveness":{},"verified":false,"featured":false},{"id":12569,"slug":"12569","resource":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/mempool-pulse","description":"Kaspa mempool transaction count over time. AI agent API for mempool-state regime detection. Informational research data — not investment advice.","type":"http","x402Version":2,"accepts":[{"scheme":"exact","network":"eip155:8453","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:137","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:42161","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:480","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x79A02482A880bCE3F13e09Da970dC34db4CD24d1","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","payTo":"GgS891nMiEETjBEFw1QQxVcAqsRV34mDYpxh24TrpCiD","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","payTo":"5GRGZVUNRF2S4BY2TNRBCUCKUOT3H6BP56ACPCZVGR3ISTTRRSSB2RGJGI","asset":"31566704","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"stellar:pubnet","payTo":"GDYFWCUFLG7MZAITOOVITYDNCLVJXWJ7OASYJAJPPOTONUQRNBCRO2VP","asset":"USDC:GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN","amount":"200000","maxTimeoutSeconds":300}],"outputSchema":{"bazaar":{"info":{"input":{"method":"GET","type":"http"},"output":{"example":{},"type":"json"}},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"properties":{},"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"}},"eip2612GasSponsoring":{"info":{"description":"The facilitator accepts EIP-2612 gasless Permit to Permit2 canonical contract.","version":"1"},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"amount":{"description":"The amount to approve (uint256).","pattern":"^[0-9]+$","type":"string"},"asset":{"description":"The address of the ERC-20 token contract.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"deadline":{"description":"The timestamp at which the signature expires.","pattern":"^[0-9]+$","type":"string"},"from":{"description":"The address of the sender.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"nonce":{"description":"The current EIP-2612 nonce of the sender.","pattern":"^[0-9]+$","type":"string"},"signature":{"description":"The 65-byte concatenated signature (r, s, v) as a hex string.","pattern":"^0x[a-fA-F0-9]+$","type":"string"},"spender":{"description":"The address of the spender (Canonical Permit2).","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"version":{"description":"Schema version identifier.","pattern":"^[0-9]+(\\.[0-9]+)*$","type":"string"}},"required":["from","asset","spender","amount","nonce","deadline","signature","version"],"type":"object"}},"erc20ApprovalGasSponsoring":{"info":{"description":"The facilitator accepts a raw signed approval transaction and will sponsor the gas fees.","version":"1"},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"amount":{"description":"Approval amount (uint256).","pattern":"^[0-9]+$","type":"string"},"asset":{"description":"The ERC-20 token contract address to approve.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"from":{"description":"The address of the sender.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"signedTransaction":{"description":"RLP-encoded signed transaction calling ERC20.approve().","pattern":"^0x[a-fA-F0-9]+$","type":"string"},"spender":{"description":"The address of the spender (Canonical Permit2).","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"version":{"description":"Schema version identifier.","pattern":"^[0-9]+(\\.[0-9]+)*$","type":"string"}},"required":["from","asset","spender","amount","signedTransaction","version"],"type":"object"}},"offer-receipt":{"info":{"offers":[{"acceptIndex":0,"format":"eip712","payload":{"amount":"20000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","network":"eip155:8453","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/mempool-pulse","scheme":"exact","validUntil":1789032648,"version":1},"signature":"0x22b184943005ca54b86a267a6931a286495d61b4c18a930f660d5dd9d86dca044652fced670c1a01d6eb6522e23dccbccf9b6645f0887df9636332735416ffce1b"},{"acceptIndex":1,"format":"eip712","payload":{"amount":"20000","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","network":"eip155:137","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/mempool-pulse","scheme":"exact","validUntil":1789032648,"version":1},"signature":"0xd8b5377846f843bd9b88f3118dcfee21500825dda07c3985023e76321c06e183747f1755ee7c228512fc730ff73b40ea24fc323feb2748201c3f7fb14d83c5701b"},{"acceptIndex":2,"format":"eip712","payload":{"amount":"20000","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","network":"eip155:42161","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/mempool-pulse","scheme":"exact","validUntil":1789032648,"version":1},"signature":"0xd59d03983a211cbfc052b6d7e69fc0f442b8168a26cfe873b820d439a074d0d834930b8133759c40c019901a2607f20fc93db9f63c15d297469af5bce5edca591b"},{"acceptIndex":3,"format":"eip712","payload":{"amount":"20000","asset":"0x79A02482A880bCE3F13e09Da970dC34db4CD24d1","network":"eip155:480","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/mempool-pulse","scheme":"exact","validUntil":1789032648,"version":1},"signature":"0x32c22877939563d6e680dd1d1fb7c8a9b7c7e3fcf5a7b7035856c6ab98239a4755d5e6b0bdc681b3b566fdc08c091eed3e32bde0a9e3848dd8f066da57abfd011b"},{"acceptIndex":4,"format":"eip712","payload":{"amount":"20000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","payTo":"GgS891nMiEETjBEFw1QQxVcAqsRV34mDYpxh24TrpCiD","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/mempool-pulse","scheme":"exact","validUntil":1789032648,"version":1},"signature":"0x3925e78ac9ea42f6b305d8a36ed4353e36a3fe92df856d090d672cab631bf7454e4e5c0bc5a42a1adb358ad5c3951803201060b749745cc71ab37448939266fe1b"},{"acceptIndex":5,"format":"eip712","payload":{"amount":"20000","asset":"31566704","network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","payTo":"5GRGZVUNRF2S4BY2TNRBCUCKUOT3H6BP56ACPCZVGR3ISTTRRSSB2RGJGI","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/mempool-pulse","scheme":"exact","validUntil":1789032648,"version":1},"signature":"0x6a7e5b5937a16e0300f8851590ad784925dbd29df7f8ececc193d83b3a2c469145d04ebc5f2e22c39f37cf119136ec19931babc1f80c3e7cde0b6a178d90e23e1c"},{"acceptIndex":6,"format":"eip712","payload":{"amount":"200000","asset":"USDC:GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN","network":"stellar:pubnet","payTo":"GDYFWCUFLG7MZAITOOVITYDNCLVJXWJ7OASYJAJPPOTONUQRNBCRO2VP","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/mempool-pulse","scheme":"exact","validUntil":1789032648,"version":1},"signature":"0x7cfb0dcc83d40817617ca1645ccf6441049ea1cd740134b11cb106a1acb0290d582ebff8fe9089f2147973c81aceca76a7dd3ba1ce62c749b45bb121cdf5955c1c"}]},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"format":{"enum":["eip712","jws"],"type":"string"},"payload":{"type":"object"},"signature":{"type":"string"}},"required":["format","payload","signature"],"type":"object"}},"payment-identifier":{"info":{"required":false},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"id":{"maxLength":128,"minLength":16,"pattern":"^[a-zA-Z0-9_-]+$","type":"string"},"required":{"type":"boolean"}},"required":["required"],"type":"object"}}},"tags":["bazaar","eip2612GasSponsoring","erc20ApprovalGasSponsoring","offer-receipt","payment-identifier"],"sourceHost":"api.carbon-cashmere.de","lastUpdated":"2026-09-10T08:30:48.169Z","quality":{"calls30d":1,"uniquePayers30d":1,"lastCalledAt":"2026-09-10T08:30:47.648Z"},"liveness":{},"verified":false,"featured":false},{"id":12570,"slug":"12570","resource":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/dag-state","description":"Kaspa BlockDAG topology snapshot: tips, sink, virtual chain, pruning point, blue scores. For DAG-state monitoring, side-branch detection, sync verification.","type":"http","x402Version":2,"accepts":[{"scheme":"exact","network":"eip155:8453","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:137","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:42161","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:480","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x79A02482A880bCE3F13e09Da970dC34db4CD24d1","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","payTo":"GgS891nMiEETjBEFw1QQxVcAqsRV34mDYpxh24TrpCiD","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","payTo":"5GRGZVUNRF2S4BY2TNRBCUCKUOT3H6BP56ACPCZVGR3ISTTRRSSB2RGJGI","asset":"31566704","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"stellar:pubnet","payTo":"GDYFWCUFLG7MZAITOOVITYDNCLVJXWJ7OASYJAJPPOTONUQRNBCRO2VP","asset":"USDC:GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN","amount":"200000","maxTimeoutSeconds":300}],"outputSchema":{"bazaar":{"info":{"input":{"method":"GET","type":"http"},"output":{"example":{},"type":"json"}},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"properties":{},"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"}},"eip2612GasSponsoring":{"info":{"description":"The facilitator accepts EIP-2612 gasless Permit to Permit2 canonical contract.","version":"1"},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"amount":{"description":"The amount to approve (uint256).","pattern":"^[0-9]+$","type":"string"},"asset":{"description":"The address of the ERC-20 token contract.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"deadline":{"description":"The timestamp at which the signature expires.","pattern":"^[0-9]+$","type":"string"},"from":{"description":"The address of the sender.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"nonce":{"description":"The current EIP-2612 nonce of the sender.","pattern":"^[0-9]+$","type":"string"},"signature":{"description":"The 65-byte concatenated signature (r, s, v) as a hex string.","pattern":"^0x[a-fA-F0-9]+$","type":"string"},"spender":{"description":"The address of the spender (Canonical Permit2).","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"version":{"description":"Schema version identifier.","pattern":"^[0-9]+(\\.[0-9]+)*$","type":"string"}},"required":["from","asset","spender","amount","nonce","deadline","signature","version"],"type":"object"}},"erc20ApprovalGasSponsoring":{"info":{"description":"The facilitator accepts a raw signed approval transaction and will sponsor the gas fees.","version":"1"},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"amount":{"description":"Approval amount (uint256).","pattern":"^[0-9]+$","type":"string"},"asset":{"description":"The ERC-20 token contract address to approve.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"from":{"description":"The address of the sender.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"signedTransaction":{"description":"RLP-encoded signed transaction calling ERC20.approve().","pattern":"^0x[a-fA-F0-9]+$","type":"string"},"spender":{"description":"The address of the spender (Canonical Permit2).","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"version":{"description":"Schema version identifier.","pattern":"^[0-9]+(\\.[0-9]+)*$","type":"string"}},"required":["from","asset","spender","amount","signedTransaction","version"],"type":"object"}},"offer-receipt":{"info":{"offers":[{"acceptIndex":0,"format":"eip712","payload":{"amount":"20000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","network":"eip155:8453","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/dag-state","scheme":"exact","validUntil":1789032629,"version":1},"signature":"0xbbed43f47555aefdb65ab02482e1dde4818118b09400dd23c96cfe13ae23adc37817007befcbddf1aa67fbefd2b1557b266f2025f347010e42933d65802213691c"},{"acceptIndex":1,"format":"eip712","payload":{"amount":"20000","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","network":"eip155:137","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/dag-state","scheme":"exact","validUntil":1789032629,"version":1},"signature":"0x325cf7c9a0c586d98ffcbf9012a45b844b3d5dce2f8522eb49fc59ea5915ded120a20ef1f54da8c8a36e05fe468353e242b6d48c84bc3c79012630e0b9469aea1c"},{"acceptIndex":2,"format":"eip712","payload":{"amount":"20000","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","network":"eip155:42161","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/dag-state","scheme":"exact","validUntil":1789032629,"version":1},"signature":"0x6730a6448ae2293e393d61cbb735ce783ccee96bc8b6bbc0b78be18c06cf58af20a98bacc0850bd0f7dc49024a4d613dd7509aebf0c80b552ddc3806d8050d0f1c"},{"acceptIndex":3,"format":"eip712","payload":{"amount":"20000","asset":"0x79A02482A880bCE3F13e09Da970dC34db4CD24d1","network":"eip155:480","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/dag-state","scheme":"exact","validUntil":1789032629,"version":1},"signature":"0x479b3d37020172b67d9376a4a52008dc5ad9aac39df68f7ab0e40ab691617d866da2256128e1eca8239b72d78f71fa8d4abc79a339c23e5b1d76a424ea1a120f1c"},{"acceptIndex":4,"format":"eip712","payload":{"amount":"20000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","payTo":"GgS891nMiEETjBEFw1QQxVcAqsRV34mDYpxh24TrpCiD","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/dag-state","scheme":"exact","validUntil":1789032629,"version":1},"signature":"0x3866e99b77879b0dfd7944ca1a2e90b009ac70b0499028d200de472fdb08a6a76c4563c3b4fe84dadc8f439654ecc8d28d9f97d751847014b6ab12674b73bcbd1b"},{"acceptIndex":5,"format":"eip712","payload":{"amount":"20000","asset":"31566704","network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","payTo":"5GRGZVUNRF2S4BY2TNRBCUCKUOT3H6BP56ACPCZVGR3ISTTRRSSB2RGJGI","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/dag-state","scheme":"exact","validUntil":1789032629,"version":1},"signature":"0x55155196454391d15ef76ad8b5cae76fefe9837f94a69124f3c36bac47832e986da95a6a37d1f1d45e5f2226a1d5a3381c3eb3053585fc1372ec5d8729417f811b"},{"acceptIndex":6,"format":"eip712","payload":{"amount":"200000","asset":"USDC:GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN","network":"stellar:pubnet","payTo":"GDYFWCUFLG7MZAITOOVITYDNCLVJXWJ7OASYJAJPPOTONUQRNBCRO2VP","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/dag-state","scheme":"exact","validUntil":1789032629,"version":1},"signature":"0xb06d4c65c0e598bda73dd667d11185901d3157ab0550a6191b79789789b428dc0c8a69bca84bad040a3b9998558b1dc65f67cb38775cb336fe19b305a4370d451c"}]},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"format":{"enum":["eip712","jws"],"type":"string"},"payload":{"type":"object"},"signature":{"type":"string"}},"required":["format","payload","signature"],"type":"object"}},"payment-identifier":{"info":{"required":false},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"id":{"maxLength":128,"minLength":16,"pattern":"^[a-zA-Z0-9_-]+$","type":"string"},"required":{"type":"boolean"}},"required":["required"],"type":"object"}}},"tags":["bazaar","eip2612GasSponsoring","erc20ApprovalGasSponsoring","offer-receipt","payment-identifier"],"sourceHost":"api.carbon-cashmere.de","lastUpdated":"2026-09-10T08:30:29.711Z","quality":{"calls30d":1,"uniquePayers30d":1,"lastCalledAt":"2026-09-10T08:30:29.224Z"},"liveness":{},"verified":false,"featured":false},{"id":12571,"slug":"12571","resource":"https://api.carbon-cashmere.de/v1/btc-derivatives/blocks-range","description":"Bulk Bitcoin block extract (max 144 blocks per call = $1.44 cap). Returns array of per-block summaries (height, time, miner pool, tx count, witness/taproot/ordinals/op_return stats, total output, coinbase reward).","type":"http","x402Version":2,"accepts":[{"scheme":"exact","network":"eip155:8453","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:137","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:42161","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:480","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x79A02482A880bCE3F13e09Da970dC34db4CD24d1","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","payTo":"GgS891nMiEETjBEFw1QQxVcAqsRV34mDYpxh24TrpCiD","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","payTo":"5GRGZVUNRF2S4BY2TNRBCUCKUOT3H6BP56ACPCZVGR3ISTTRRSSB2RGJGI","asset":"31566704","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"stellar:pubnet","payTo":"GDYFWCUFLG7MZAITOOVITYDNCLVJXWJ7OASYJAJPPOTONUQRNBCRO2VP","asset":"USDC:GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN","amount":"200000","maxTimeoutSeconds":300}],"outputSchema":{"bazaar":{"info":{"input":{"method":"GET","type":"http"},"output":{"example":{},"type":"json"}},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"properties":{},"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"}},"eip2612GasSponsoring":{"info":{"description":"The facilitator accepts EIP-2612 gasless Permit to Permit2 canonical contract.","version":"1"},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"amount":{"description":"The amount to approve (uint256).","pattern":"^[0-9]+$","type":"string"},"asset":{"description":"The address of the ERC-20 token contract.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"deadline":{"description":"The timestamp at which the signature expires.","pattern":"^[0-9]+$","type":"string"},"from":{"description":"The address of the sender.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"nonce":{"description":"The current EIP-2612 nonce of the sender.","pattern":"^[0-9]+$","type":"string"},"signature":{"description":"The 65-byte concatenated signature (r, s, v) as a hex string.","pattern":"^0x[a-fA-F0-9]+$","type":"string"},"spender":{"description":"The address of the spender (Canonical Permit2).","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"version":{"description":"Schema version identifier.","pattern":"^[0-9]+(\\.[0-9]+)*$","type":"string"}},"required":["from","asset","spender","amount","nonce","deadline","signature","version"],"type":"object"}},"erc20ApprovalGasSponsoring":{"info":{"description":"The facilitator accepts a raw signed approval transaction and will sponsor the gas fees.","version":"1"},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"amount":{"description":"Approval amount (uint256).","pattern":"^[0-9]+$","type":"string"},"asset":{"description":"The ERC-20 token contract address to approve.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"from":{"description":"The address of the sender.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"signedTransaction":{"description":"RLP-encoded signed transaction calling ERC20.approve().","pattern":"^0x[a-fA-F0-9]+$","type":"string"},"spender":{"description":"The address of the spender (Canonical Permit2).","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"version":{"description":"Schema version identifier.","pattern":"^[0-9]+(\\.[0-9]+)*$","type":"string"}},"required":["from","asset","spender","amount","signedTransaction","version"],"type":"object"}},"offer-receipt":{"info":{"offers":[{"acceptIndex":0,"format":"eip712","payload":{"amount":"20000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","network":"eip155:8453","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/btc-derivatives/blocks-range","scheme":"exact","validUntil":1789032617,"version":1},"signature":"0x43064bee1029ae53c74665694ee0ab264cb4ca4285b8df979bde473b7908f38e29db359d52f19e682744a64c1804348bd9a28076b7fc0f34b77c6474ce53070c1b"},{"acceptIndex":1,"format":"eip712","payload":{"amount":"20000","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","network":"eip155:137","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/btc-derivatives/blocks-range","scheme":"exact","validUntil":1789032617,"version":1},"signature":"0x166983873626d32a98ab7cbbc3e4259c719a64d02b706021719f34d1389649014e163ed7f4e643c49ab5a78d34d80b89bc1ce9a339d5185a718c7aa953786a3b1b"},{"acceptIndex":2,"format":"eip712","payload":{"amount":"20000","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","network":"eip155:42161","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/btc-derivatives/blocks-range","scheme":"exact","validUntil":1789032617,"version":1},"signature":"0xeb650540f4a4cb21e53eeb1747d7854c9545c1a8683e2f1e6bd721c57f4963190d5ef8b3db02a5e132ec2e8c84afc864693b4ea4184f0d458fe775f93438a3c21c"},{"acceptIndex":3,"format":"eip712","payload":{"amount":"20000","asset":"0x79A02482A880bCE3F13e09Da970dC34db4CD24d1","network":"eip155:480","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/btc-derivatives/blocks-range","scheme":"exact","validUntil":1789032617,"version":1},"signature":"0x18025dfc1becb310b7e0d7e5d5e8e8db69cddc888c793c2ec705dcbf380695c6572b7e3f07ccd05e4ee8cb13f52d812481c9b24c5c5fd88da97dc2b27afe4e141c"},{"acceptIndex":4,"format":"eip712","payload":{"amount":"20000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","payTo":"GgS891nMiEETjBEFw1QQxVcAqsRV34mDYpxh24TrpCiD","resourceUrl":"https://api.carbon-cashmere.de/v1/btc-derivatives/blocks-range","scheme":"exact","validUntil":1789032617,"version":1},"signature":"0x41d70cf9cd13d5f9dd4ecd1272930358ec275190bc2e72e07de792b0f3ab1e0b40ad33d4f25bde2e02896f8872572482d5a7dcf5ca1ab4e88e76f570845c36bc1c"},{"acceptIndex":5,"format":"eip712","payload":{"amount":"20000","asset":"31566704","network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","payTo":"5GRGZVUNRF2S4BY2TNRBCUCKUOT3H6BP56ACPCZVGR3ISTTRRSSB2RGJGI","resourceUrl":"https://api.carbon-cashmere.de/v1/btc-derivatives/blocks-range","scheme":"exact","validUntil":1789032617,"version":1},"signature":"0x6feb2ca1203f30d98bca9ed7852c702e085dfbce764d98aa9ab14ae98b0bbb623922fc47d2ea8049e4dbadac1a66bbb35d66392e09349764f3aff59b4fd782f31b"},{"acceptIndex":6,"format":"eip712","payload":{"amount":"200000","asset":"USDC:GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN","network":"stellar:pubnet","payTo":"GDYFWCUFLG7MZAITOOVITYDNCLVJXWJ7OASYJAJPPOTONUQRNBCRO2VP","resourceUrl":"https://api.carbon-cashmere.de/v1/btc-derivatives/blocks-range","scheme":"exact","validUntil":1789032617,"version":1},"signature":"0x40df62763d135052ed9100c178354fe4d1a100244a28862576a2c55f8d083e763dccfa1670556faf7572c8884ea7705c0378b4ee3c69dd630a027802e52a766d1b"}]},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"format":{"enum":["eip712","jws"],"type":"string"},"payload":{"type":"object"},"signature":{"type":"string"}},"required":["format","payload","signature"],"type":"object"}},"payment-identifier":{"info":{"required":false},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"id":{"maxLength":128,"minLength":16,"pattern":"^[a-zA-Z0-9_-]+$","type":"string"},"required":{"type":"boolean"}},"required":["required"],"type":"object"}}},"tags":["bazaar","eip2612GasSponsoring","erc20ApprovalGasSponsoring","offer-receipt","payment-identifier"],"sourceHost":"api.carbon-cashmere.de","lastUpdated":"2026-09-10T08:30:17.459Z","quality":{"calls30d":1,"uniquePayers30d":1,"lastCalledAt":"2026-09-10T08:30:16.97Z"},"liveness":{},"verified":false,"featured":false},{"id":12572,"slug":"12572","resource":"https://api.carbon-cashmere.de/v1/btc-derivatives/blocks/:height","description":"Deep per-block Bitcoin extract. Returns miner-pool attribution, witness/taproot adoption %, Ordinals inscription count, OP_RETURN byte volume, fee percentiles (10/25/50/75/90), UTXO delta, segwit %, total output BTC, block weight.","type":"http","x402Version":2,"accepts":[{"scheme":"exact","network":"eip155:8453","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:137","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:42161","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:480","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x79A02482A880bCE3F13e09Da970dC34db4CD24d1","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","payTo":"GgS891nMiEETjBEFw1QQxVcAqsRV34mDYpxh24TrpCiD","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","payTo":"5GRGZVUNRF2S4BY2TNRBCUCKUOT3H6BP56ACPCZVGR3ISTTRRSSB2RGJGI","asset":"31566704","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"stellar:pubnet","payTo":"GDYFWCUFLG7MZAITOOVITYDNCLVJXWJ7OASYJAJPPOTONUQRNBCRO2VP","asset":"USDC:GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN","amount":"200000","maxTimeoutSeconds":300}],"outputSchema":{"bazaar":{"info":{"input":{"method":"GET","pathParams":{"height":"950000"},"type":"http"},"output":{"example":{},"type":"json"}},"routeTemplate":"/v1/btc-derivatives/blocks/:height","schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"pathParams":{"type":"object"},"queryParams":{"properties":{},"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"}},"eip2612GasSponsoring":{"info":{"description":"The facilitator accepts EIP-2612 gasless Permit to Permit2 canonical contract.","version":"1"},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"amount":{"description":"The amount to approve (uint256).","pattern":"^[0-9]+$","type":"string"},"asset":{"description":"The address of the ERC-20 token contract.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"deadline":{"description":"The timestamp at which the signature expires.","pattern":"^[0-9]+$","type":"string"},"from":{"description":"The address of the sender.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"nonce":{"description":"The current EIP-2612 nonce of the sender.","pattern":"^[0-9]+$","type":"string"},"signature":{"description":"The 65-byte concatenated signature (r, s, v) as a hex string.","pattern":"^0x[a-fA-F0-9]+$","type":"string"},"spender":{"description":"The address of the spender (Canonical Permit2).","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"version":{"description":"Schema version identifier.","pattern":"^[0-9]+(\\.[0-9]+)*$","type":"string"}},"required":["from","asset","spender","amount","nonce","deadline","signature","version"],"type":"object"}},"erc20ApprovalGasSponsoring":{"info":{"description":"The facilitator accepts a raw signed approval transaction and will sponsor the gas fees.","version":"1"},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"amount":{"description":"Approval amount (uint256).","pattern":"^[0-9]+$","type":"string"},"asset":{"description":"The ERC-20 token contract address to approve.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"from":{"description":"The address of the sender.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"signedTransaction":{"description":"RLP-encoded signed transaction calling ERC20.approve().","pattern":"^0x[a-fA-F0-9]+$","type":"string"},"spender":{"description":"The address of the spender (Canonical Permit2).","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"version":{"description":"Schema version identifier.","pattern":"^[0-9]+(\\.[0-9]+)*$","type":"string"}},"required":["from","asset","spender","amount","signedTransaction","version"],"type":"object"}},"offer-receipt":{"info":{"offers":[{"acceptIndex":0,"format":"eip712","payload":{"amount":"20000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","network":"eip155:8453","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/btc-derivatives/blocks/950000","scheme":"exact","validUntil":1788946239,"version":1},"signature":"0x20c4abc65bc5a960036bcb05c76f3557962dfa89a8f16fd1e907d8c31207c45272a451d4a904933e0934009a668cfb314dd7d531ba65ad855db973b28deb02d11c"},{"acceptIndex":1,"format":"eip712","payload":{"amount":"20000","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","network":"eip155:137","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/btc-derivatives/blocks/950000","scheme":"exact","validUntil":1788946239,"version":1},"signature":"0xfd221e05bf8a177d123a4d07d2e2c184e34887f4ab3a0e4cc074b47af82b1d3c0d25755dcd069e3b91477b4ae9b82bb67b5aba66992a0828b4d3943a92fea2a51b"},{"acceptIndex":2,"format":"eip712","payload":{"amount":"20000","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","network":"eip155:42161","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/btc-derivatives/blocks/950000","scheme":"exact","validUntil":1788946239,"version":1},"signature":"0x8755603343cd46d8e34d8263a95081894a34e2577aebde17b51f7d55199046c15b50a64d6386391a8114a3cdb3803302cb169fc8d58a40a4774fee1aa3da68231b"},{"acceptIndex":3,"format":"eip712","payload":{"amount":"20000","asset":"0x79A02482A880bCE3F13e09Da970dC34db4CD24d1","network":"eip155:480","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/btc-derivatives/blocks/950000","scheme":"exact","validUntil":1788946239,"version":1},"signature":"0xbbc044c6d0bdad1f08d971803648bc3b0aff8afbc16cb315bb96816656d9c3b34c73f889775b36b6ef6ca6ad35dd541ef347104d3544c40527bb97cce498690d1b"},{"acceptIndex":4,"format":"eip712","payload":{"amount":"20000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","payTo":"GgS891nMiEETjBEFw1QQxVcAqsRV34mDYpxh24TrpCiD","resourceUrl":"https://api.carbon-cashmere.de/v1/btc-derivatives/blocks/950000","scheme":"exact","validUntil":1788946239,"version":1},"signature":"0x4144c4735a4de69731b62bc2d0651454455db6dc3703fc4d201614ad1e566a4d6737a7a79b3926e19f39ab61a3b7d2fd69c62edce9de365bb8be4d9969b418fe1c"},{"acceptIndex":5,"format":"eip712","payload":{"amount":"20000","asset":"31566704","network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","payTo":"5GRGZVUNRF2S4BY2TNRBCUCKUOT3H6BP56ACPCZVGR3ISTTRRSSB2RGJGI","resourceUrl":"https://api.carbon-cashmere.de/v1/btc-derivatives/blocks/950000","scheme":"exact","validUntil":1788946239,"version":1},"signature":"0x60b224bbf332f0067383fb013ce97273344206f121a5a4572061f7a236fdd5ce0aa49d846852909b40ac3d1578a34b9711b0db4bf260417a09cf201dd5f7c4061c"},{"acceptIndex":6,"format":"eip712","payload":{"amount":"200000","asset":"USDC:GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN","network":"stellar:pubnet","payTo":"GDYFWCUFLG7MZAITOOVITYDNCLVJXWJ7OASYJAJPPOTONUQRNBCRO2VP","resourceUrl":"https://api.carbon-cashmere.de/v1/btc-derivatives/blocks/950000","scheme":"exact","validUntil":1788946239,"version":1},"signature":"0x68d3e10a374f356b460fa75d87a66006ed6b84bbf1675aac336beddc786c3e265b5a3e9fe7e7580ba20a5487d51399b23d9c3d11f02de2a00044ef5effd731631c"}]},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"format":{"enum":["eip712","jws"],"type":"string"},"payload":{"type":"object"},"signature":{"type":"string"}},"required":["format","payload","signature"],"type":"object"}},"payment-identifier":{"info":{"required":false},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"id":{"maxLength":128,"minLength":16,"pattern":"^[a-zA-Z0-9_-]+$","type":"string"},"required":{"type":"boolean"}},"required":["required"],"type":"object"}}},"tags":["bazaar","eip2612GasSponsoring","erc20ApprovalGasSponsoring","offer-receipt","payment-identifier"],"sourceHost":"api.carbon-cashmere.de","lastUpdated":"2026-09-09T08:30:39.639Z","quality":{"calls30d":1,"uniquePayers30d":1,"lastCalledAt":"2026-09-09T08:30:39.154Z"},"liveness":{},"verified":false,"featured":false},{"id":12573,"slug":"12573","resource":"https://api.carbon-cashmere.de/v1/btc-derivatives/fee-curve","description":"Bitcoin smart-fee curve for 1/3/6/12/24/144-block confirmation targets + trend classification (rising/stable/falling/surging) from 2h moving average.","type":"http","x402Version":2,"accepts":[{"scheme":"exact","network":"eip155:8453","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:137","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:42161","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:480","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x79A02482A880bCE3F13e09Da970dC34db4CD24d1","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","payTo":"GgS891nMiEETjBEFw1QQxVcAqsRV34mDYpxh24TrpCiD","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","payTo":"5GRGZVUNRF2S4BY2TNRBCUCKUOT3H6BP56ACPCZVGR3ISTTRRSSB2RGJGI","asset":"31566704","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"stellar:pubnet","payTo":"GDYFWCUFLG7MZAITOOVITYDNCLVJXWJ7OASYJAJPPOTONUQRNBCRO2VP","asset":"USDC:GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN","amount":"200000","maxTimeoutSeconds":300}],"outputSchema":{"bazaar":{"info":{"input":{"method":"GET","type":"http"},"output":{"example":{},"type":"json"}},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"properties":{},"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"}},"eip2612GasSponsoring":{"info":{"description":"The facilitator accepts EIP-2612 gasless Permit to Permit2 canonical contract.","version":"1"},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"amount":{"description":"The amount to approve (uint256).","pattern":"^[0-9]+$","type":"string"},"asset":{"description":"The address of the ERC-20 token contract.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"deadline":{"description":"The timestamp at which the signature expires.","pattern":"^[0-9]+$","type":"string"},"from":{"description":"The address of the sender.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"nonce":{"description":"The current EIP-2612 nonce of the sender.","pattern":"^[0-9]+$","type":"string"},"signature":{"description":"The 65-byte concatenated signature (r, s, v) as a hex string.","pattern":"^0x[a-fA-F0-9]+$","type":"string"},"spender":{"description":"The address of the spender (Canonical Permit2).","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"version":{"description":"Schema version identifier.","pattern":"^[0-9]+(\\.[0-9]+)*$","type":"string"}},"required":["from","asset","spender","amount","nonce","deadline","signature","version"],"type":"object"}},"erc20ApprovalGasSponsoring":{"info":{"description":"The facilitator accepts a raw signed approval transaction and will sponsor the gas fees.","version":"1"},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"amount":{"description":"Approval amount (uint256).","pattern":"^[0-9]+$","type":"string"},"asset":{"description":"The ERC-20 token contract address to approve.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"from":{"description":"The address of the sender.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"signedTransaction":{"description":"RLP-encoded signed transaction calling ERC20.approve().","pattern":"^0x[a-fA-F0-9]+$","type":"string"},"spender":{"description":"The address of the spender (Canonical Permit2).","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"version":{"description":"Schema version identifier.","pattern":"^[0-9]+(\\.[0-9]+)*$","type":"string"}},"required":["from","asset","spender","amount","signedTransaction","version"],"type":"object"}},"offer-receipt":{"info":{"offers":[{"acceptIndex":0,"format":"eip712","payload":{"amount":"20000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","network":"eip155:8453","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/btc-derivatives/fee-curve","scheme":"exact","validUntil":1788946234,"version":1},"signature":"0xcb38015369f2609fc1b67f9b995c5f2ea22a76ae04f0cb0eefcbfefb2964d8cc272042830891e705d3b4c003f9914748a9b564ff8884da58729d4984146bf6d21c"},{"acceptIndex":1,"format":"eip712","payload":{"amount":"20000","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","network":"eip155:137","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/btc-derivatives/fee-curve","scheme":"exact","validUntil":1788946234,"version":1},"signature":"0xdf034e9930c7be404f7ca7f11b549e44f9adeecf3664bf48d9e12c20344d77680b41492a0ac59280fd72fbdf8aaaeac7a37693f120a5fca8bafc6a6de6a9a9921b"},{"acceptIndex":2,"format":"eip712","payload":{"amount":"20000","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","network":"eip155:42161","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/btc-derivatives/fee-curve","scheme":"exact","validUntil":1788946234,"version":1},"signature":"0x2bc358df9c56f76f38dfb8a5cf97f604a90b701973763c807237f4764ae63f4775e2aacda06f0587e6dd7bd42469921f299fc80ec84bf147b4051806950692801b"},{"acceptIndex":3,"format":"eip712","payload":{"amount":"20000","asset":"0x79A02482A880bCE3F13e09Da970dC34db4CD24d1","network":"eip155:480","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/btc-derivatives/fee-curve","scheme":"exact","validUntil":1788946234,"version":1},"signature":"0x96a175e29082ed9b3341c3ac563cb5769d7efe76e233d041f4ea782360859bd35e088fcecbca7e9a486137513d8748f15d0023ac1598ccdb33e02765e4c805001c"},{"acceptIndex":4,"format":"eip712","payload":{"amount":"20000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","payTo":"GgS891nMiEETjBEFw1QQxVcAqsRV34mDYpxh24TrpCiD","resourceUrl":"https://api.carbon-cashmere.de/v1/btc-derivatives/fee-curve","scheme":"exact","validUntil":1788946234,"version":1},"signature":"0xa2364680135d23a3f144304af2da8dc5da1ce13d785343178bf87e68d0311cfd2ac9982ef59bf30c21fa19ab371411a7ddfa4e46faa202c54702751d30f983121b"},{"acceptIndex":5,"format":"eip712","payload":{"amount":"20000","asset":"31566704","network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","payTo":"5GRGZVUNRF2S4BY2TNRBCUCKUOT3H6BP56ACPCZVGR3ISTTRRSSB2RGJGI","resourceUrl":"https://api.carbon-cashmere.de/v1/btc-derivatives/fee-curve","scheme":"exact","validUntil":1788946234,"version":1},"signature":"0x341019731754e45b4184564f616a10823209c76847ce6f67130cdd9c316458a02191b003747e381b07f9b030f9bea9013354be12fbb3716a7400977b9395ce1d1c"},{"acceptIndex":6,"format":"eip712","payload":{"amount":"200000","asset":"USDC:GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN","network":"stellar:pubnet","payTo":"GDYFWCUFLG7MZAITOOVITYDNCLVJXWJ7OASYJAJPPOTONUQRNBCRO2VP","resourceUrl":"https://api.carbon-cashmere.de/v1/btc-derivatives/fee-curve","scheme":"exact","validUntil":1788946234,"version":1},"signature":"0x068fd63ed857f27aed927bbf963f0ea200e57589e912c7bae0295f099ca75e7359a15ebf97956d974560ff4ee742b9eb4d6469b1dc5b8a1cddeb819bd08a61661b"}]},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"format":{"enum":["eip712","jws"],"type":"string"},"payload":{"type":"object"},"signature":{"type":"string"}},"required":["format","payload","signature"],"type":"object"}},"payment-identifier":{"info":{"required":false},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"id":{"maxLength":128,"minLength":16,"pattern":"^[a-zA-Z0-9_-]+$","type":"string"},"required":{"type":"boolean"}},"required":["required"],"type":"object"}}},"tags":["bazaar","eip2612GasSponsoring","erc20ApprovalGasSponsoring","offer-receipt","payment-identifier"],"sourceHost":"api.carbon-cashmere.de","lastUpdated":"2026-09-09T08:30:34.823Z","quality":{"calls30d":1,"uniquePayers30d":1,"lastCalledAt":"2026-09-09T08:30:34.619Z"},"liveness":{},"verified":false,"featured":false},{"id":12574,"slug":"12574","resource":"https://api.carbon-cashmere.de/v1/btc-derivatives/diversity","description":"Bitcoin own-node peer-network diversity (IPv4/IPv6/Tor/I2P/CJDNS distribution) + privacy share. AI agent API for privacy researchers, node-operator tooling, network-health analytics. Informational research data — not investment advice.","type":"http","x402Version":2,"accepts":[{"scheme":"exact","network":"eip155:8453","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:137","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:42161","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:480","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x79A02482A880bCE3F13e09Da970dC34db4CD24d1","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","payTo":"GgS891nMiEETjBEFw1QQxVcAqsRV34mDYpxh24TrpCiD","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","payTo":"5GRGZVUNRF2S4BY2TNRBCUCKUOT3H6BP56ACPCZVGR3ISTTRRSSB2RGJGI","asset":"31566704","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"stellar:pubnet","payTo":"GDYFWCUFLG7MZAITOOVITYDNCLVJXWJ7OASYJAJPPOTONUQRNBCRO2VP","asset":"USDC:GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN","amount":"200000","maxTimeoutSeconds":300}],"outputSchema":{"bazaar":{"info":{"input":{"method":"GET","type":"http"},"output":{"example":{},"type":"json"}},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"properties":{},"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"}},"eip2612GasSponsoring":{"info":{"description":"The facilitator accepts EIP-2612 gasless Permit to Permit2 canonical contract.","version":"1"},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"amount":{"description":"The amount to approve (uint256).","pattern":"^[0-9]+$","type":"string"},"asset":{"description":"The address of the ERC-20 token contract.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"deadline":{"description":"The timestamp at which the signature expires.","pattern":"^[0-9]+$","type":"string"},"from":{"description":"The address of the sender.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"nonce":{"description":"The current EIP-2612 nonce of the sender.","pattern":"^[0-9]+$","type":"string"},"signature":{"description":"The 65-byte concatenated signature (r, s, v) as a hex string.","pattern":"^0x[a-fA-F0-9]+$","type":"string"},"spender":{"description":"The address of the spender (Canonical Permit2).","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"version":{"description":"Schema version identifier.","pattern":"^[0-9]+(\\.[0-9]+)*$","type":"string"}},"required":["from","asset","spender","amount","nonce","deadline","signature","version"],"type":"object"}},"erc20ApprovalGasSponsoring":{"info":{"description":"The facilitator accepts a raw signed approval transaction and will sponsor the gas fees.","version":"1"},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"amount":{"description":"Approval amount (uint256).","pattern":"^[0-9]+$","type":"string"},"asset":{"description":"The ERC-20 token contract address to approve.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"from":{"description":"The address of the sender.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"signedTransaction":{"description":"RLP-encoded signed transaction calling ERC20.approve().","pattern":"^0x[a-fA-F0-9]+$","type":"string"},"spender":{"description":"The address of the spender (Canonical Permit2).","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"version":{"description":"Schema version identifier.","pattern":"^[0-9]+(\\.[0-9]+)*$","type":"string"}},"required":["from","asset","spender","amount","signedTransaction","version"],"type":"object"}},"offer-receipt":{"info":{"offers":[{"acceptIndex":0,"format":"eip712","payload":{"amount":"20000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","network":"eip155:8453","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/btc-derivatives/diversity","scheme":"exact","validUntil":1788946221,"version":1},"signature":"0xcef1d89320ade552da4570f5fe181db78ffab3ae5e228ba61781b74b3ca3e9ad1ca7c3d5568f58b01317b3731913e41d5260be4a3fba8823551e6045f78d89c31c"},{"acceptIndex":1,"format":"eip712","payload":{"amount":"20000","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","network":"eip155:137","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/btc-derivatives/diversity","scheme":"exact","validUntil":1788946221,"version":1},"signature":"0x563f63d7e694f0daf45faf8ce61ad8e703149991455bdcb6f83ccd1bbb11b9bd24cc3928218ad800971fdef657be24a47b2f4fcc4cba7388b78d6e18e763c2551c"},{"acceptIndex":2,"format":"eip712","payload":{"amount":"20000","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","network":"eip155:42161","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/btc-derivatives/diversity","scheme":"exact","validUntil":1788946221,"version":1},"signature":"0xd11344b04bc6e20d90e53da5c382b3bf77720deda3077f55d52681ebf7f10f7569441bafd62d323d421d5386da9cb7b02187c41549f4e01ff2bb7af625e0821c1c"},{"acceptIndex":3,"format":"eip712","payload":{"amount":"20000","asset":"0x79A02482A880bCE3F13e09Da970dC34db4CD24d1","network":"eip155:480","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/btc-derivatives/diversity","scheme":"exact","validUntil":1788946221,"version":1},"signature":"0xec26f40117a666604925c9e80ab3c38e469164185515a76d2e8e23362f8047882f6d2159b5824f2b072e7af3146f4435595c86e71ab8e1b07375671b0a31ee2d1b"},{"acceptIndex":4,"format":"eip712","payload":{"amount":"20000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","payTo":"GgS891nMiEETjBEFw1QQxVcAqsRV34mDYpxh24TrpCiD","resourceUrl":"https://api.carbon-cashmere.de/v1/btc-derivatives/diversity","scheme":"exact","validUntil":1788946221,"version":1},"signature":"0xc78fbc7004c4a233e5c567cd0f65dee12069ae7744bab78126af7b8efb43f7cf711450b7fd2f04ec3846726e8ae2681d6e855f65285526424a4dff5ba723cf411c"},{"acceptIndex":5,"format":"eip712","payload":{"amount":"20000","asset":"31566704","network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","payTo":"5GRGZVUNRF2S4BY2TNRBCUCKUOT3H6BP56ACPCZVGR3ISTTRRSSB2RGJGI","resourceUrl":"https://api.carbon-cashmere.de/v1/btc-derivatives/diversity","scheme":"exact","validUntil":1788946221,"version":1},"signature":"0x6e03dfd9ff8e36d42934beab5b57678a31cbe06959e746a22f1605db824e982f1c1c1ef3d071844dd5b36ae46bc44534d69bcd11dbc635f57730302b210b88ad1c"},{"acceptIndex":6,"format":"eip712","payload":{"amount":"200000","asset":"USDC:GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN","network":"stellar:pubnet","payTo":"GDYFWCUFLG7MZAITOOVITYDNCLVJXWJ7OASYJAJPPOTONUQRNBCRO2VP","resourceUrl":"https://api.carbon-cashmere.de/v1/btc-derivatives/diversity","scheme":"exact","validUntil":1788946221,"version":1},"signature":"0x8a70d36751f792b77444a5d4b9b7bc0e19000f5c44a27ab6854e5691e40acf4d4ee8a78c9624cb3a63f352bc0ff2d6182e8a0d9c393326a824b0d4dda8dbc20e1b"}]},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"format":{"enum":["eip712","jws"],"type":"string"},"payload":{"type":"object"},"signature":{"type":"string"}},"required":["format","payload","signature"],"type":"object"}},"payment-identifier":{"info":{"required":false},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"id":{"maxLength":128,"minLength":16,"pattern":"^[a-zA-Z0-9_-]+$","type":"string"},"required":{"type":"boolean"}},"required":["required"],"type":"object"}}},"tags":["bazaar","eip2612GasSponsoring","erc20ApprovalGasSponsoring","offer-receipt","payment-identifier"],"sourceHost":"api.carbon-cashmere.de","lastUpdated":"2026-09-09T08:30:21.419Z","quality":{"calls30d":1,"uniquePayers30d":1,"lastCalledAt":"2026-09-09T08:30:20.846Z"},"liveness":{},"verified":false,"featured":false},{"id":12575,"slug":"12575","resource":"https://api.carbon-cashmere.de/v1/btc-derivatives/ordinals-flow","description":"Hourly Bitcoin Ordinals inscriptions + OP_RETURN byte volume. Inscriptions detected via witness-envelope magic bytes (cord). Window up to 7d.","type":"http","x402Version":2,"accepts":[{"scheme":"exact","network":"eip155:8453","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:137","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:42161","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:480","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x79A02482A880bCE3F13e09Da970dC34db4CD24d1","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","payTo":"GgS891nMiEETjBEFw1QQxVcAqsRV34mDYpxh24TrpCiD","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","payTo":"5GRGZVUNRF2S4BY2TNRBCUCKUOT3H6BP56ACPCZVGR3ISTTRRSSB2RGJGI","asset":"31566704","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"stellar:pubnet","payTo":"GDYFWCUFLG7MZAITOOVITYDNCLVJXWJ7OASYJAJPPOTONUQRNBCRO2VP","asset":"USDC:GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN","amount":"200000","maxTimeoutSeconds":300}],"outputSchema":{"bazaar":{"info":{"input":{"method":"GET","type":"http"},"output":{"example":{},"type":"json"}},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"properties":{},"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"}},"eip2612GasSponsoring":{"info":{"description":"The facilitator accepts EIP-2612 gasless Permit to Permit2 canonical contract.","version":"1"},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"amount":{"description":"The amount to approve (uint256).","pattern":"^[0-9]+$","type":"string"},"asset":{"description":"The address of the ERC-20 token contract.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"deadline":{"description":"The timestamp at which the signature expires.","pattern":"^[0-9]+$","type":"string"},"from":{"description":"The address of the sender.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"nonce":{"description":"The current EIP-2612 nonce of the sender.","pattern":"^[0-9]+$","type":"string"},"signature":{"description":"The 65-byte concatenated signature (r, s, v) as a hex string.","pattern":"^0x[a-fA-F0-9]+$","type":"string"},"spender":{"description":"The address of the spender (Canonical Permit2).","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"version":{"description":"Schema version identifier.","pattern":"^[0-9]+(\\.[0-9]+)*$","type":"string"}},"required":["from","asset","spender","amount","nonce","deadline","signature","version"],"type":"object"}},"erc20ApprovalGasSponsoring":{"info":{"description":"The facilitator accepts a raw signed approval transaction and will sponsor the gas fees.","version":"1"},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"amount":{"description":"Approval amount (uint256).","pattern":"^[0-9]+$","type":"string"},"asset":{"description":"The ERC-20 token contract address to approve.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"from":{"description":"The address of the sender.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"signedTransaction":{"description":"RLP-encoded signed transaction calling ERC20.approve().","pattern":"^0x[a-fA-F0-9]+$","type":"string"},"spender":{"description":"The address of the spender (Canonical Permit2).","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"version":{"description":"Schema version identifier.","pattern":"^[0-9]+(\\.[0-9]+)*$","type":"string"}},"required":["from","asset","spender","amount","signedTransaction","version"],"type":"object"}},"offer-receipt":{"info":{"offers":[{"acceptIndex":0,"format":"eip712","payload":{"amount":"20000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","network":"eip155:8453","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/btc-derivatives/ordinals-flow","scheme":"exact","validUntil":1788946216,"version":1},"signature":"0xce5fb432c2d478367e83d0f3ad7166c20a8cefbc6a22a0ee7ee053782e8dec243810abda4e3e308666ea3b4a0d80390c6df5af424824a2ff510b7ba2a9d6541b1c"},{"acceptIndex":1,"format":"eip712","payload":{"amount":"20000","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","network":"eip155:137","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/btc-derivatives/ordinals-flow","scheme":"exact","validUntil":1788946216,"version":1},"signature":"0xb6684dd7fe028daa8badccb4aa4e8d4426e3802f534d3676eb2ac948ccd20f2e1d756ff96bf6116d283f644720dcd5abf2da5681127f0a69c4dbce32c024db1c1b"},{"acceptIndex":2,"format":"eip712","payload":{"amount":"20000","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","network":"eip155:42161","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/btc-derivatives/ordinals-flow","scheme":"exact","validUntil":1788946216,"version":1},"signature":"0xb93be81def4c693acf87850954f130936259b7a939d3e8b0891278c6ccf198fa3c4c726185c14b9a856171af39859a836f33de09e928d40d0dbac54d9b3b1fc11b"},{"acceptIndex":3,"format":"eip712","payload":{"amount":"20000","asset":"0x79A02482A880bCE3F13e09Da970dC34db4CD24d1","network":"eip155:480","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/btc-derivatives/ordinals-flow","scheme":"exact","validUntil":1788946216,"version":1},"signature":"0x87175c07ae3c040a432c2f2de93c5f06e4b57a6826088b6e0c230054eaa0a3254d35f47435195b5952edcf32f3d3ff7067b47e135c4dd932ee35a09ce338b5d31c"},{"acceptIndex":4,"format":"eip712","payload":{"amount":"20000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","payTo":"GgS891nMiEETjBEFw1QQxVcAqsRV34mDYpxh24TrpCiD","resourceUrl":"https://api.carbon-cashmere.de/v1/btc-derivatives/ordinals-flow","scheme":"exact","validUntil":1788946216,"version":1},"signature":"0x13d0a04889d9f30a3c941c9f16c324d17ebd1ea0b5d90e5c533b90e32bf5a5e426480313448f6f9cb2d6aa9e1d6cc82fa1747a5acf1b11f1ab8ad19177822de91b"},{"acceptIndex":5,"format":"eip712","payload":{"amount":"20000","asset":"31566704","network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","payTo":"5GRGZVUNRF2S4BY2TNRBCUCKUOT3H6BP56ACPCZVGR3ISTTRRSSB2RGJGI","resourceUrl":"https://api.carbon-cashmere.de/v1/btc-derivatives/ordinals-flow","scheme":"exact","validUntil":1788946216,"version":1},"signature":"0x212d76153d1361831ba61cf221168da28a36e4366db8f231b59e4e70aab7be0771ade2615d79f4dd9207e6973a534b2c499b003a9e6b96722aca94bc0a7b0ae01c"},{"acceptIndex":6,"format":"eip712","payload":{"amount":"200000","asset":"USDC:GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN","network":"stellar:pubnet","payTo":"GDYFWCUFLG7MZAITOOVITYDNCLVJXWJ7OASYJAJPPOTONUQRNBCRO2VP","resourceUrl":"https://api.carbon-cashmere.de/v1/btc-derivatives/ordinals-flow","scheme":"exact","validUntil":1788946216,"version":1},"signature":"0x7139eb2de66c3afa79549b68dc7ce2061eeb0ed711fe81a80f1200a783a6663a139f0548690169de31163fc8aac4d072d99ef6fe2f5c76c8fbe55ce77ff016711c"}]},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"format":{"enum":["eip712","jws"],"type":"string"},"payload":{"type":"object"},"signature":{"type":"string"}},"required":["format","payload","signature"],"type":"object"}},"payment-identifier":{"info":{"required":false},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"id":{"maxLength":128,"minLength":16,"pattern":"^[a-zA-Z0-9_-]+$","type":"string"},"required":{"type":"boolean"}},"required":["required"],"type":"object"}}},"tags":["bazaar","eip2612GasSponsoring","erc20ApprovalGasSponsoring","offer-receipt","payment-identifier"],"sourceHost":"api.carbon-cashmere.de","lastUpdated":"2026-09-09T08:30:16.254Z","quality":{"calls30d":1,"uniquePayers30d":1,"lastCalledAt":"2026-09-09T08:30:15.711Z"},"liveness":{},"verified":false,"featured":false},{"id":12576,"slug":"12576","resource":"https://api.carbon-cashmere.de/v1/bittensor-derivatives/registration-cost-history","description":"Hourly Bittensor subnet registration activity (NeuronRegistered event count per subnet) + current burn-cost per subnet. Useful for predicting cheap-registration windows.","type":"http","x402Version":2,"accepts":[{"scheme":"exact","network":"eip155:8453","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:137","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:42161","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:480","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x79A02482A880bCE3F13e09Da970dC34db4CD24d1","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","payTo":"GgS891nMiEETjBEFw1QQxVcAqsRV34mDYpxh24TrpCiD","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","payTo":"5GRGZVUNRF2S4BY2TNRBCUCKUOT3H6BP56ACPCZVGR3ISTTRRSSB2RGJGI","asset":"31566704","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"stellar:pubnet","payTo":"GDYFWCUFLG7MZAITOOVITYDNCLVJXWJ7OASYJAJPPOTONUQRNBCRO2VP","asset":"USDC:GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN","amount":"200000","maxTimeoutSeconds":300}],"outputSchema":{"bazaar":{"info":{"input":{"method":"GET","type":"http"},"output":{"example":{},"type":"json"}},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"properties":{},"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"}},"eip2612GasSponsoring":{"info":{"description":"The facilitator accepts EIP-2612 gasless Permit to Permit2 canonical contract.","version":"1"},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"amount":{"description":"The amount to approve (uint256).","pattern":"^[0-9]+$","type":"string"},"asset":{"description":"The address of the ERC-20 token contract.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"deadline":{"description":"The timestamp at which the signature expires.","pattern":"^[0-9]+$","type":"string"},"from":{"description":"The address of the sender.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"nonce":{"description":"The current EIP-2612 nonce of the sender.","pattern":"^[0-9]+$","type":"string"},"signature":{"description":"The 65-byte concatenated signature (r, s, v) as a hex string.","pattern":"^0x[a-fA-F0-9]+$","type":"string"},"spender":{"description":"The address of the spender (Canonical Permit2).","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"version":{"description":"Schema version identifier.","pattern":"^[0-9]+(\\.[0-9]+)*$","type":"string"}},"required":["from","asset","spender","amount","nonce","deadline","signature","version"],"type":"object"}},"erc20ApprovalGasSponsoring":{"info":{"description":"The facilitator accepts a raw signed approval transaction and will sponsor the gas fees.","version":"1"},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"amount":{"description":"Approval amount (uint256).","pattern":"^[0-9]+$","type":"string"},"asset":{"description":"The ERC-20 token contract address to approve.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"from":{"description":"The address of the sender.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"signedTransaction":{"description":"RLP-encoded signed transaction calling ERC20.approve().","pattern":"^0x[a-fA-F0-9]+$","type":"string"},"spender":{"description":"The address of the spender (Canonical Permit2).","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"version":{"description":"Schema version identifier.","pattern":"^[0-9]+(\\.[0-9]+)*$","type":"string"}},"required":["from","asset","spender","amount","signedTransaction","version"],"type":"object"}},"offer-receipt":{"info":{"offers":[{"acceptIndex":0,"format":"eip712","payload":{"amount":"20000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","network":"eip155:8453","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/bittensor-derivatives/registration-cost-history","scheme":"exact","validUntil":1788859852,"version":1},"signature":"0x5f6900ef83100c4bb5424c48d29d6e00417f20afdc46911283f94f08cd89a569743d16ccda1bf2632e76546be9b577681d54b695aa2ca0c52fa39744f9e03b461c"},{"acceptIndex":1,"format":"eip712","payload":{"amount":"20000","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","network":"eip155:137","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/bittensor-derivatives/registration-cost-history","scheme":"exact","validUntil":1788859852,"version":1},"signature":"0x08e30984ecbeb8643bb799e485a5e781ef6fd9b50b7d1f8310163c7cf79d3c622e55d01da26525e7d83fa198662c5bbe046f235e370ce1f9db611d6d5aeaaaab1b"},{"acceptIndex":2,"format":"eip712","payload":{"amount":"20000","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","network":"eip155:42161","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/bittensor-derivatives/registration-cost-history","scheme":"exact","validUntil":1788859852,"version":1},"signature":"0x830a778aaee4d8b1aea6a5a316bb81bb0c178b45165925494bff67876e360f3a7141f2a65c314457fa126388f83bec1fa0b0d4a1e67699e9596d580fa6b3383b1c"},{"acceptIndex":3,"format":"eip712","payload":{"amount":"20000","asset":"0x79A02482A880bCE3F13e09Da970dC34db4CD24d1","network":"eip155:480","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/bittensor-derivatives/registration-cost-history","scheme":"exact","validUntil":1788859852,"version":1},"signature":"0xb629f98539538ba050e2ba6533b2012266364ee5de07a563092c4384660a4cd37a8e19070edb9e0344b22e3b23239f710cf247a8eed980d979432a3ab36550c91b"},{"acceptIndex":4,"format":"eip712","payload":{"amount":"20000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","payTo":"GgS891nMiEETjBEFw1QQxVcAqsRV34mDYpxh24TrpCiD","resourceUrl":"https://api.carbon-cashmere.de/v1/bittensor-derivatives/registration-cost-history","scheme":"exact","validUntil":1788859852,"version":1},"signature":"0x06ac85f3e973f2a2f9d0a2816fe15cacf3bdb3ae7cd4d272494aef175c3c99ce52c53caf13d8a3bc9b2774c5ec05f59fb27cde535bc1dc326f13c02c1dc7c70a1c"},{"acceptIndex":5,"format":"eip712","payload":{"amount":"20000","asset":"31566704","network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","payTo":"5GRGZVUNRF2S4BY2TNRBCUCKUOT3H6BP56ACPCZVGR3ISTTRRSSB2RGJGI","resourceUrl":"https://api.carbon-cashmere.de/v1/bittensor-derivatives/registration-cost-history","scheme":"exact","validUntil":1788859852,"version":1},"signature":"0x5f1b9f662bc17c234b0919c554cce7cfe70d4e2104b103b3b2158f32a04cc4f95edb8ee951cb9e852d701c9012714825be9a9ca0c8b76cb7c7042217ffe963681c"},{"acceptIndex":6,"format":"eip712","payload":{"amount":"200000","asset":"USDC:GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN","network":"stellar:pubnet","payTo":"GDYFWCUFLG7MZAITOOVITYDNCLVJXWJ7OASYJAJPPOTONUQRNBCRO2VP","resourceUrl":"https://api.carbon-cashmere.de/v1/bittensor-derivatives/registration-cost-history","scheme":"exact","validUntil":1788859852,"version":1},"signature":"0xc9d73d6c3c6fb6d7688450c8b21e64a4fbdf1ca67132bc38770f164d0a1e52814b789185ba377f2bbbcd6ee58d52916b3827255e57de8e54a1a22b5c1b507ead1c"}]},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"format":{"enum":["eip712","jws"],"type":"string"},"payload":{"type":"object"},"signature":{"type":"string"}},"required":["format","payload","signature"],"type":"object"}},"payment-identifier":{"info":{"required":false},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"id":{"maxLength":128,"minLength":16,"pattern":"^[a-zA-Z0-9_-]+$","type":"string"},"required":{"type":"boolean"}},"required":["required"],"type":"object"}}},"tags":["bazaar","eip2612GasSponsoring","erc20ApprovalGasSponsoring","offer-receipt","payment-identifier"],"sourceHost":"api.carbon-cashmere.de","lastUpdated":"2026-09-08T08:30:52.623Z","quality":{"calls30d":1,"uniquePayers30d":1,"lastCalledAt":"2026-09-08T08:30:52.303Z"},"liveness":{},"verified":false,"featured":false},{"id":12577,"slug":"12577","resource":"https://api.carbon-cashmere.de/v1/bittensor-derivatives/subnet/:netuid/emission-trend","description":"Hourly emission and stake trend for a Bittensor subnet (window: 1h/24h/7d/30d). Derived from bittensor_metagraph snapshots. AI agent API for subnet-momentum tracking. Informational research data — not investment advice.","type":"http","x402Version":2,"accepts":[{"scheme":"exact","network":"eip155:8453","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:137","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:42161","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:480","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x79A02482A880bCE3F13e09Da970dC34db4CD24d1","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","payTo":"GgS891nMiEETjBEFw1QQxVcAqsRV34mDYpxh24TrpCiD","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","payTo":"5GRGZVUNRF2S4BY2TNRBCUCKUOT3H6BP56ACPCZVGR3ISTTRRSSB2RGJGI","asset":"31566704","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"stellar:pubnet","payTo":"GDYFWCUFLG7MZAITOOVITYDNCLVJXWJ7OASYJAJPPOTONUQRNBCRO2VP","asset":"USDC:GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN","amount":"200000","maxTimeoutSeconds":300}],"outputSchema":{"bazaar":{"info":{"input":{"method":"GET","pathParams":{"netuid":"1"},"type":"http"},"output":{"example":{},"type":"json"}},"routeTemplate":"/v1/bittensor-derivatives/subnet/:netuid/emission-trend","schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"pathParams":{"additionalProperties":false,"properties":{"netuid":{"description":"Bittensor subnet UID (0-511) as URL path segment.","examples":["3","64","123"],"pattern":"^\\d{1,3}$","type":"string"}},"required":["netuid"],"type":"object"},"queryParams":{"properties":{},"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"}},"eip2612GasSponsoring":{"info":{"description":"The facilitator accepts EIP-2612 gasless Permit to Permit2 canonical contract.","version":"1"},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"amount":{"description":"The amount to approve (uint256).","pattern":"^[0-9]+$","type":"string"},"asset":{"description":"The address of the ERC-20 token contract.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"deadline":{"description":"The timestamp at which the signature expires.","pattern":"^[0-9]+$","type":"string"},"from":{"description":"The address of the sender.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"nonce":{"description":"The current EIP-2612 nonce of the sender.","pattern":"^[0-9]+$","type":"string"},"signature":{"description":"The 65-byte concatenated signature (r, s, v) as a hex string.","pattern":"^0x[a-fA-F0-9]+$","type":"string"},"spender":{"description":"The address of the spender (Canonical Permit2).","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"version":{"description":"Schema version identifier.","pattern":"^[0-9]+(\\.[0-9]+)*$","type":"string"}},"required":["from","asset","spender","amount","nonce","deadline","signature","version"],"type":"object"}},"erc20ApprovalGasSponsoring":{"info":{"description":"The facilitator accepts a raw signed approval transaction and will sponsor the gas fees.","version":"1"},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"amount":{"description":"Approval amount (uint256).","pattern":"^[0-9]+$","type":"string"},"asset":{"description":"The ERC-20 token contract address to approve.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"from":{"description":"The address of the sender.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"signedTransaction":{"description":"RLP-encoded signed transaction calling ERC20.approve().","pattern":"^0x[a-fA-F0-9]+$","type":"string"},"spender":{"description":"The address of the spender (Canonical Permit2).","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"version":{"description":"Schema version identifier.","pattern":"^[0-9]+(\\.[0-9]+)*$","type":"string"}},"required":["from","asset","spender","amount","signedTransaction","version"],"type":"object"}},"offer-receipt":{"info":{"offers":[{"acceptIndex":0,"format":"eip712","payload":{"amount":"20000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","network":"eip155:8453","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/bittensor-derivatives/subnet/1/emission-trend","scheme":"exact","validUntil":1788859839,"version":1},"signature":"0x417d4070b9b1770b77d62c2da3509df05da946eec94bdbb5d7ce820bb6fce17a1d83694db77e92d47f1a290aa41824f52a56c36e453d574c43245d7e2f99809c1c"},{"acceptIndex":1,"format":"eip712","payload":{"amount":"20000","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","network":"eip155:137","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/bittensor-derivatives/subnet/1/emission-trend","scheme":"exact","validUntil":1788859839,"version":1},"signature":"0xc277686451ed5ed3bfab9de5a8499cfffe2979eb55e6463d91996b76c0e931511277fc6d9648f1825c0978aac5dff51bf82d139a3affece945ffeb58f36021051b"},{"acceptIndex":2,"format":"eip712","payload":{"amount":"20000","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","network":"eip155:42161","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/bittensor-derivatives/subnet/1/emission-trend","scheme":"exact","validUntil":1788859839,"version":1},"signature":"0x7565989f37c1e103487efa6e3922c863e236936e5e93a502e19e7680d4cd807f259f3042a0ef7986652fc5ae343d67d7c2ba406070b3c2215f4b664d5618f45c1c"},{"acceptIndex":3,"format":"eip712","payload":{"amount":"20000","asset":"0x79A02482A880bCE3F13e09Da970dC34db4CD24d1","network":"eip155:480","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/bittensor-derivatives/subnet/1/emission-trend","scheme":"exact","validUntil":1788859839,"version":1},"signature":"0x3527f176d66c2bc42352b4b428e229c2a81985aae139db2532c689555cabe26e415458cf0dbae02c95935f84cd2d267002c3909e74b4a01e88d588405a33a66a1c"},{"acceptIndex":4,"format":"eip712","payload":{"amount":"20000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","payTo":"GgS891nMiEETjBEFw1QQxVcAqsRV34mDYpxh24TrpCiD","resourceUrl":"https://api.carbon-cashmere.de/v1/bittensor-derivatives/subnet/1/emission-trend","scheme":"exact","validUntil":1788859839,"version":1},"signature":"0x57b0b1c0a7be88f8730917d269f2e7099a01bb3a856b3a471577a424637b68a77508d9ae294a01bcc0d9ce493ee4d98c753e5393be79c30455a1f67117b04e8c1b"},{"acceptIndex":5,"format":"eip712","payload":{"amount":"20000","asset":"31566704","network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","payTo":"5GRGZVUNRF2S4BY2TNRBCUCKUOT3H6BP56ACPCZVGR3ISTTRRSSB2RGJGI","resourceUrl":"https://api.carbon-cashmere.de/v1/bittensor-derivatives/subnet/1/emission-trend","scheme":"exact","validUntil":1788859839,"version":1},"signature":"0x9f6603b14992f7502df11ccd49557cf9f31c6e0d8c6e872a43db0daa3a85e3c51c977734de2aff095be11c9702824ce32ef12c5f71395767318aad7ab065ddd71b"},{"acceptIndex":6,"format":"eip712","payload":{"amount":"200000","asset":"USDC:GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN","network":"stellar:pubnet","payTo":"GDYFWCUFLG7MZAITOOVITYDNCLVJXWJ7OASYJAJPPOTONUQRNBCRO2VP","resourceUrl":"https://api.carbon-cashmere.de/v1/bittensor-derivatives/subnet/1/emission-trend","scheme":"exact","validUntil":1788859839,"version":1},"signature":"0x7977def77e605afdd1ccab7d62cfaba4adc4c90ab7af01f78d1431b648ad33967baff2c8a2d5f2d2450052d9c67fa74e5b835580933d860418c8c0ce2c6e09261b"}]},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"format":{"enum":["eip712","jws"],"type":"string"},"payload":{"type":"object"},"signature":{"type":"string"}},"required":["format","payload","signature"],"type":"object"}},"payment-identifier":{"info":{"required":false},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"id":{"maxLength":128,"minLength":16,"pattern":"^[a-zA-Z0-9_-]+$","type":"string"},"required":{"type":"boolean"}},"required":["required"],"type":"object"}}},"tags":["bazaar","eip2612GasSponsoring","erc20ApprovalGasSponsoring","offer-receipt","payment-identifier"],"sourceHost":"api.carbon-cashmere.de","lastUpdated":"2026-09-08T08:30:40.027Z","quality":{"calls30d":1,"uniquePayers30d":1,"lastCalledAt":"2026-09-08T08:30:39.547Z"},"liveness":{},"verified":false,"featured":false},{"id":12578,"slug":"12578","resource":"https://api.carbon-cashmere.de/v1/bittensor-derivatives/alpha-price-history/:netuid","description":"Time-series of alpha-token price for a single Bittensor subnet (window: 1h/24h/7d/30d). Sourced from bittensor_alpha_prices captured every 10 minutes. AI agent API for alpha-token trading signals. Informational research data — not investment advice.","type":"http","x402Version":2,"accepts":[{"scheme":"exact","network":"eip155:8453","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:137","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:42161","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:480","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x79A02482A880bCE3F13e09Da970dC34db4CD24d1","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","payTo":"GgS891nMiEETjBEFw1QQxVcAqsRV34mDYpxh24TrpCiD","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","payTo":"5GRGZVUNRF2S4BY2TNRBCUCKUOT3H6BP56ACPCZVGR3ISTTRRSSB2RGJGI","asset":"31566704","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"stellar:pubnet","payTo":"GDYFWCUFLG7MZAITOOVITYDNCLVJXWJ7OASYJAJPPOTONUQRNBCRO2VP","asset":"USDC:GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN","amount":"200000","maxTimeoutSeconds":300}],"outputSchema":{"bazaar":{"info":{"input":{"method":"GET","pathParams":{"netuid":"1"},"type":"http"},"output":{"example":{},"type":"json"}},"routeTemplate":"/v1/bittensor-derivatives/alpha-price-history/:netuid","schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"pathParams":{"additionalProperties":false,"properties":{"netuid":{"description":"Bittensor subnet UID (0-511) as URL path segment.","examples":["3","64","123"],"pattern":"^\\d{1,3}$","type":"string"}},"required":["netuid"],"type":"object"},"queryParams":{"properties":{},"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"}},"eip2612GasSponsoring":{"info":{"description":"The facilitator accepts EIP-2612 gasless Permit to Permit2 canonical contract.","version":"1"},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"amount":{"description":"The amount to approve (uint256).","pattern":"^[0-9]+$","type":"string"},"asset":{"description":"The address of the ERC-20 token contract.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"deadline":{"description":"The timestamp at which the signature expires.","pattern":"^[0-9]+$","type":"string"},"from":{"description":"The address of the sender.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"nonce":{"description":"The current EIP-2612 nonce of the sender.","pattern":"^[0-9]+$","type":"string"},"signature":{"description":"The 65-byte concatenated signature (r, s, v) as a hex string.","pattern":"^0x[a-fA-F0-9]+$","type":"string"},"spender":{"description":"The address of the spender (Canonical Permit2).","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"version":{"description":"Schema version identifier.","pattern":"^[0-9]+(\\.[0-9]+)*$","type":"string"}},"required":["from","asset","spender","amount","nonce","deadline","signature","version"],"type":"object"}},"erc20ApprovalGasSponsoring":{"info":{"description":"The facilitator accepts a raw signed approval transaction and will sponsor the gas fees.","version":"1"},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"amount":{"description":"Approval amount (uint256).","pattern":"^[0-9]+$","type":"string"},"asset":{"description":"The ERC-20 token contract address to approve.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"from":{"description":"The address of the sender.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"signedTransaction":{"description":"RLP-encoded signed transaction calling ERC20.approve().","pattern":"^0x[a-fA-F0-9]+$","type":"string"},"spender":{"description":"The address of the spender (Canonical Permit2).","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"version":{"description":"Schema version identifier.","pattern":"^[0-9]+(\\.[0-9]+)*$","type":"string"}},"required":["from","asset","spender","amount","signedTransaction","version"],"type":"object"}},"offer-receipt":{"info":{"offers":[{"acceptIndex":0,"format":"eip712","payload":{"amount":"20000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","network":"eip155:8453","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/bittensor-derivatives/alpha-price-history/1","scheme":"exact","validUntil":1788859835,"version":1},"signature":"0x026fb56a85bbe8cae4d653127af882905c72faada6ea13f5702be671786457f25e9e905ab53d018e869df28b54c3094a81cff827fe42a21bfe6350736f81578b1b"},{"acceptIndex":1,"format":"eip712","payload":{"amount":"20000","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","network":"eip155:137","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/bittensor-derivatives/alpha-price-history/1","scheme":"exact","validUntil":1788859835,"version":1},"signature":"0xbdc6a7f43b1c8e00b9f87647f611c86378bed9113a0338c9b064b023de596a502789efd34fc9d097ddd498206b76be089a999c5c1391418b0939cf0fff28594a1b"},{"acceptIndex":2,"format":"eip712","payload":{"amount":"20000","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","network":"eip155:42161","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/bittensor-derivatives/alpha-price-history/1","scheme":"exact","validUntil":1788859835,"version":1},"signature":"0x02747005c10bbd2022dd2c1c783da5c396099d72c387d710abbd1b6034b8926e71428c5cd2f3b98b53284d59faf75b0c293680e9d6e353162bbe681f55dbc57a1b"},{"acceptIndex":3,"format":"eip712","payload":{"amount":"20000","asset":"0x79A02482A880bCE3F13e09Da970dC34db4CD24d1","network":"eip155:480","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/bittensor-derivatives/alpha-price-history/1","scheme":"exact","validUntil":1788859835,"version":1},"signature":"0xaf3fe9ee417e99e2ccc3d9fa00647181f65c10e137ca0d63cf81b235efd4299f280b3b41b18bdb4abb96e6bcc72f3d64f72481e6d2f23965d31a6a09b8663e1b1b"},{"acceptIndex":4,"format":"eip712","payload":{"amount":"20000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","payTo":"GgS891nMiEETjBEFw1QQxVcAqsRV34mDYpxh24TrpCiD","resourceUrl":"https://api.carbon-cashmere.de/v1/bittensor-derivatives/alpha-price-history/1","scheme":"exact","validUntil":1788859835,"version":1},"signature":"0x9788d01328b7f1a2d60c703b6d8aa41db84d1840eb1066fc68d57e83126b0c181196d61fe01aee42318f0823e9b361a3519bed9d4dff9f76744dd8943bb2ad2b1c"},{"acceptIndex":5,"format":"eip712","payload":{"amount":"20000","asset":"31566704","network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","payTo":"5GRGZVUNRF2S4BY2TNRBCUCKUOT3H6BP56ACPCZVGR3ISTTRRSSB2RGJGI","resourceUrl":"https://api.carbon-cashmere.de/v1/bittensor-derivatives/alpha-price-history/1","scheme":"exact","validUntil":1788859835,"version":1},"signature":"0x105f4768d5eb53087a1efdf35cccbe0d63690c3ad35b95ae57338afab3a53a2d292323867ebae7050b4ca4aeb6bf07fb72cb510e6ea2ccb30b6d36347c059a191c"},{"acceptIndex":6,"format":"eip712","payload":{"amount":"200000","asset":"USDC:GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN","network":"stellar:pubnet","payTo":"GDYFWCUFLG7MZAITOOVITYDNCLVJXWJ7OASYJAJPPOTONUQRNBCRO2VP","resourceUrl":"https://api.carbon-cashmere.de/v1/bittensor-derivatives/alpha-price-history/1","scheme":"exact","validUntil":1788859835,"version":1},"signature":"0x384f766b263b40dd86844cd3d562a44180d2ed2eba76a7bf595aa60c832505ef635e39d5e7e08df6ac6a649d93bc6bba365efbe7d457013ead3ef45bc73317861b"}]},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"format":{"enum":["eip712","jws"],"type":"string"},"payload":{"type":"object"},"signature":{"type":"string"}},"required":["format","payload","signature"],"type":"object"}},"payment-identifier":{"info":{"required":false},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"id":{"maxLength":128,"minLength":16,"pattern":"^[a-zA-Z0-9_-]+$","type":"string"},"required":{"type":"boolean"}},"required":["required"],"type":"object"}}},"tags":["bazaar","eip2612GasSponsoring","erc20ApprovalGasSponsoring","offer-receipt","payment-identifier"],"sourceHost":"api.carbon-cashmere.de","lastUpdated":"2026-09-08T08:30:35.6Z","quality":{"calls30d":1,"uniquePayers30d":1,"lastCalledAt":"2026-09-08T08:30:35.1Z"},"liveness":{},"verified":false,"featured":false},{"id":12579,"slug":"12579","resource":"https://api.carbon-cashmere.de/v1/bittensor-derivatives/alpha-prices","description":"Latest alpha-token price per Bittensor subnet (TAO + USD). All 129 subnets in one call. AI agent API for cross-subnet price arbitrage, dTAO portfolio rebalancing. Informational research data — not investment advice.","type":"http","x402Version":2,"accepts":[{"scheme":"exact","network":"eip155:8453","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:137","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:42161","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:480","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x79A02482A880bCE3F13e09Da970dC34db4CD24d1","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","payTo":"GgS891nMiEETjBEFw1QQxVcAqsRV34mDYpxh24TrpCiD","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","payTo":"5GRGZVUNRF2S4BY2TNRBCUCKUOT3H6BP56ACPCZVGR3ISTTRRSSB2RGJGI","asset":"31566704","amount":"20000","maxTimeoutSeconds":300},{"scheme":"exact","network":"stellar:pubnet","payTo":"GDYFWCUFLG7MZAITOOVITYDNCLVJXWJ7OASYJAJPPOTONUQRNBCRO2VP","asset":"USDC:GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN","amount":"200000","maxTimeoutSeconds":300}],"outputSchema":{"bazaar":{"info":{"input":{"method":"GET","type":"http"},"output":{"example":{},"type":"json"}},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"properties":{},"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"}},"eip2612GasSponsoring":{"info":{"description":"The facilitator accepts EIP-2612 gasless Permit to Permit2 canonical contract.","version":"1"},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"amount":{"description":"The amount to approve (uint256).","pattern":"^[0-9]+$","type":"string"},"asset":{"description":"The address of the ERC-20 token contract.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"deadline":{"description":"The timestamp at which the signature expires.","pattern":"^[0-9]+$","type":"string"},"from":{"description":"The address of the sender.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"nonce":{"description":"The current EIP-2612 nonce of the sender.","pattern":"^[0-9]+$","type":"string"},"signature":{"description":"The 65-byte concatenated signature (r, s, v) as a hex string.","pattern":"^0x[a-fA-F0-9]+$","type":"string"},"spender":{"description":"The address of the spender (Canonical Permit2).","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"version":{"description":"Schema version identifier.","pattern":"^[0-9]+(\\.[0-9]+)*$","type":"string"}},"required":["from","asset","spender","amount","nonce","deadline","signature","version"],"type":"object"}},"erc20ApprovalGasSponsoring":{"info":{"description":"The facilitator accepts a raw signed approval transaction and will sponsor the gas fees.","version":"1"},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"amount":{"description":"Approval amount (uint256).","pattern":"^[0-9]+$","type":"string"},"asset":{"description":"The ERC-20 token contract address to approve.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"from":{"description":"The address of the sender.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"signedTransaction":{"description":"RLP-encoded signed transaction calling ERC20.approve().","pattern":"^0x[a-fA-F0-9]+$","type":"string"},"spender":{"description":"The address of the spender (Canonical Permit2).","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"version":{"description":"Schema version identifier.","pattern":"^[0-9]+(\\.[0-9]+)*$","type":"string"}},"required":["from","asset","spender","amount","signedTransaction","version"],"type":"object"}},"offer-receipt":{"info":{"offers":[{"acceptIndex":0,"format":"eip712","payload":{"amount":"20000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","network":"eip155:8453","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/bittensor-derivatives/alpha-prices","scheme":"exact","validUntil":1788859828,"version":1},"signature":"0xd4d9aa05d3dba76e268af541054612ef26a1bdc8cea2550b48b589b5c606341547c2d76496f19a5f484af2a5acf14ad189490971c2f9ba46c1e9d1269174673b1b"},{"acceptIndex":1,"format":"eip712","payload":{"amount":"20000","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","network":"eip155:137","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/bittensor-derivatives/alpha-prices","scheme":"exact","validUntil":1788859828,"version":1},"signature":"0x6337ef0dcf5c4d3a0db901d3740e6e69842b55f659518d48d55af5233fd2a418293dc2604e65ac3949f95146c650d9517017e95d0d14797a7d2874b447d7913e1b"},{"acceptIndex":2,"format":"eip712","payload":{"amount":"20000","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","network":"eip155:42161","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/bittensor-derivatives/alpha-prices","scheme":"exact","validUntil":1788859828,"version":1},"signature":"0xbba3a5dac96596307168a4b60cea60878d38554b6d8b022213436fcfb2633ec459efc19166dabb4b4ea8c4f1e495221a1cbbad1a6800c451d18eb289cb0304dd1c"},{"acceptIndex":3,"format":"eip712","payload":{"amount":"20000","asset":"0x79A02482A880bCE3F13e09Da970dC34db4CD24d1","network":"eip155:480","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/bittensor-derivatives/alpha-prices","scheme":"exact","validUntil":1788859828,"version":1},"signature":"0xae0737f2de6267768ba64d880106348d90e479fc816a8a3365dbe9e1fdacc1d752044e4fe87e813d4e8bacb4f8a8a36c6d21d65ea2fee664c933eed22f52116c1b"},{"acceptIndex":4,"format":"eip712","payload":{"amount":"20000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","payTo":"GgS891nMiEETjBEFw1QQxVcAqsRV34mDYpxh24TrpCiD","resourceUrl":"https://api.carbon-cashmere.de/v1/bittensor-derivatives/alpha-prices","scheme":"exact","validUntil":1788859828,"version":1},"signature":"0xfe4b20d7056d711f2a7bf3cde31a7a7887a8ccec9325026fc2d99735f88d996270220f50a1864952e653df0daf729b0996fdd76af8a0979cd9f2f14bbe71b5381c"},{"acceptIndex":5,"format":"eip712","payload":{"amount":"20000","asset":"31566704","network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","payTo":"5GRGZVUNRF2S4BY2TNRBCUCKUOT3H6BP56ACPCZVGR3ISTTRRSSB2RGJGI","resourceUrl":"https://api.carbon-cashmere.de/v1/bittensor-derivatives/alpha-prices","scheme":"exact","validUntil":1788859828,"version":1},"signature":"0xf2edec022e56258d0324d7edd280dcdebe75ca96c13d41b55bf15eaf1143f64d53cd9940e800c9db92125d4b6e10621aa38c00a0c596f5d5a87f8831e4285fbf1c"},{"acceptIndex":6,"format":"eip712","payload":{"amount":"200000","asset":"USDC:GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN","network":"stellar:pubnet","payTo":"GDYFWCUFLG7MZAITOOVITYDNCLVJXWJ7OASYJAJPPOTONUQRNBCRO2VP","resourceUrl":"https://api.carbon-cashmere.de/v1/bittensor-derivatives/alpha-prices","scheme":"exact","validUntil":1788859828,"version":1},"signature":"0x7e3431a2bb1586a0c9364bc1dc6571a1968b8fd2bccaaaa4377ad25eb586f40425f5e95ffb8de121fc2a567d78fa38558d994daf76c43aed0e14383f7701cf571b"}]},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"format":{"enum":["eip712","jws"],"type":"string"},"payload":{"type":"object"},"signature":{"type":"string"}},"required":["format","payload","signature"],"type":"object"}},"payment-identifier":{"info":{"required":false},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"id":{"maxLength":128,"minLength":16,"pattern":"^[a-zA-Z0-9_-]+$","type":"string"},"required":{"type":"boolean"}},"required":["required"],"type":"object"}}},"tags":["bazaar","eip2612GasSponsoring","erc20ApprovalGasSponsoring","offer-receipt","payment-identifier"],"sourceHost":"api.carbon-cashmere.de","lastUpdated":"2026-09-08T08:30:28.426Z","quality":{"calls30d":1,"uniquePayers30d":1,"lastCalledAt":"2026-09-08T08:30:27.93Z"},"liveness":{},"verified":false,"featured":false},{"id":12580,"slug":"12580","resource":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/network-hashrate","description":"Kaspa network hashrate (H/s) + difficulty trend from direct node measurement (Toccata RPC). Post-fork mining-security telemetry. Informational research data — not investment advice.","type":"http","x402Version":2,"accepts":[{"scheme":"exact","network":"eip155:8453","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","amount":"50000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:137","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","amount":"50000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:42161","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","amount":"50000","maxTimeoutSeconds":300},{"scheme":"exact","network":"eip155:480","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","asset":"0x79A02482A880bCE3F13e09Da970dC34db4CD24d1","amount":"50000","maxTimeoutSeconds":300},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","payTo":"GgS891nMiEETjBEFw1QQxVcAqsRV34mDYpxh24TrpCiD","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","amount":"50000","maxTimeoutSeconds":300},{"scheme":"exact","network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","payTo":"5GRGZVUNRF2S4BY2TNRBCUCKUOT3H6BP56ACPCZVGR3ISTTRRSSB2RGJGI","asset":"31566704","amount":"50000","maxTimeoutSeconds":300},{"scheme":"exact","network":"stellar:pubnet","payTo":"GDYFWCUFLG7MZAITOOVITYDNCLVJXWJ7OASYJAJPPOTONUQRNBCRO2VP","asset":"USDC:GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN","amount":"500000","maxTimeoutSeconds":300}],"outputSchema":{"bazaar":{"info":{"input":{"method":"GET","type":"http"},"output":{"example":{},"type":"json"}},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"properties":{},"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"properties":{"difficulty":{"type":"number"},"hashrate_hs":{"type":"number"},"hashrate_phs":{"type":"number"},"window_stats_phs":{"type":"object"}},"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"}},"eip2612GasSponsoring":{"info":{"description":"The facilitator accepts EIP-2612 gasless Permit to Permit2 canonical contract.","version":"1"},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"amount":{"description":"The amount to approve (uint256).","pattern":"^[0-9]+$","type":"string"},"asset":{"description":"The address of the ERC-20 token contract.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"deadline":{"description":"The timestamp at which the signature expires.","pattern":"^[0-9]+$","type":"string"},"from":{"description":"The address of the sender.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"nonce":{"description":"The current EIP-2612 nonce of the sender.","pattern":"^[0-9]+$","type":"string"},"signature":{"description":"The 65-byte concatenated signature (r, s, v) as a hex string.","pattern":"^0x[a-fA-F0-9]+$","type":"string"},"spender":{"description":"The address of the spender (Canonical Permit2).","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"version":{"description":"Schema version identifier.","pattern":"^[0-9]+(\\.[0-9]+)*$","type":"string"}},"required":["from","asset","spender","amount","nonce","deadline","signature","version"],"type":"object"}},"erc20ApprovalGasSponsoring":{"info":{"description":"The facilitator accepts a raw signed approval transaction and will sponsor the gas fees.","version":"1"},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"amount":{"description":"Approval amount (uint256).","pattern":"^[0-9]+$","type":"string"},"asset":{"description":"The ERC-20 token contract address to approve.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"from":{"description":"The address of the sender.","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"signedTransaction":{"description":"RLP-encoded signed transaction calling ERC20.approve().","pattern":"^0x[a-fA-F0-9]+$","type":"string"},"spender":{"description":"The address of the spender (Canonical Permit2).","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"version":{"description":"Schema version identifier.","pattern":"^[0-9]+(\\.[0-9]+)*$","type":"string"}},"required":["from","asset","spender","amount","signedTransaction","version"],"type":"object"}},"offer-receipt":{"info":{"offers":[{"acceptIndex":0,"format":"eip712","payload":{"amount":"50000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","network":"eip155:8453","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/network-hashrate","scheme":"exact","validUntil":1787444989,"version":1},"signature":"0x0cb41284c87aa4ddaebeca4171dada9c89341cc3ca95a58d7c72696bfc9f4f921692c5fa5e6d127dd444061e15d1e3e008c251c56e96e17e6715e06f95ba51431b"},{"acceptIndex":1,"format":"eip712","payload":{"amount":"50000","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","network":"eip155:137","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/network-hashrate","scheme":"exact","validUntil":1787444989,"version":1},"signature":"0xa17b70f59e886ca1ca2992ee23eaa6e665cf039f49c28050a4a78588bacdced043d420c9299246e3eea4df7af87c316f4963e49f0bf11d0ffcbb079a322304ee1b"},{"acceptIndex":2,"format":"eip712","payload":{"amount":"50000","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","network":"eip155:42161","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/network-hashrate","scheme":"exact","validUntil":1787444989,"version":1},"signature":"0x0be1769ea555946d13c621186ed29b1e1b709e11124d207a6e790cd70937e8873d1f470f1d7846fbe8d2a28d7b711ec4d58b1b9cff2e31296b7c0da24bada9261b"},{"acceptIndex":3,"format":"eip712","payload":{"amount":"50000","asset":"0x79A02482A880bCE3F13e09Da970dC34db4CD24d1","network":"eip155:480","payTo":"0xf8b2dD46542175AD46e14e6133340E652665F2Ee","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/network-hashrate","scheme":"exact","validUntil":1787444989,"version":1},"signature":"0x0dc5a293349f86088a8820e5df7a56d704ce8f5e1864d0c916e8a0926dabef822b2337cd1b4be83305655a6dfdbc708a35091d16385b1aa28b91d2de5bd6384c1c"},{"acceptIndex":4,"format":"eip712","payload":{"amount":"50000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","payTo":"GgS891nMiEETjBEFw1QQxVcAqsRV34mDYpxh24TrpCiD","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/network-hashrate","scheme":"exact","validUntil":1787444989,"version":1},"signature":"0xba022918ada99164729e8852c52d0ea22db9fa0831b4312f089c1aa11cd8704e2a1c956e80247bc84a37d09ef8efc0cdde1d8dc32595d22820753385fa1634991b"},{"acceptIndex":5,"format":"eip712","payload":{"amount":"50000","asset":"31566704","network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","payTo":"5GRGZVUNRF2S4BY2TNRBCUCKUOT3H6BP56ACPCZVGR3ISTTRRSSB2RGJGI","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/network-hashrate","scheme":"exact","validUntil":1787444989,"version":1},"signature":"0x680218a539927cab46a60ada38ac3c9acc80e83bd9a0255b2a36f0d945e14c562af59da38d578f40e1cb444ea107358e0cda65a146fcd9f3c3b3a30dd55bfa2f1c"},{"acceptIndex":6,"format":"eip712","payload":{"amount":"500000","asset":"USDC:GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN","network":"stellar:pubnet","payTo":"GDYFWCUFLG7MZAITOOVITYDNCLVJXWJ7OASYJAJPPOTONUQRNBCRO2VP","resourceUrl":"https://api.carbon-cashmere.de/v1/kaspa-derivatives/network-hashrate","scheme":"exact","validUntil":1787444989,"version":1},"signature":"0x2c7dd549ef2ec7fe6f3c3c30a16474ab3c720eac0bc798b1ed7619e2981a73bd7c30ff6f60cad148dcad1bc33b2edb6f1f9b964ce35ecd96b1cbb421cfdf1d411b"}]},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"format":{"enum":["eip712","jws"],"type":"string"},"payload":{"type":"object"},"signature":{"type":"string"}},"required":["format","payload","signature"],"type":"object"}},"payment-identifier":{"info":{"required":false},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"id":{"maxLength":128,"minLength":16,"pattern":"^[a-zA-Z0-9_-]+$","type":"string"},"required":{"type":"boolean"}},"required":["required"],"type":"object"}}},"tags":["bazaar","eip2612GasSponsoring","erc20ApprovalGasSponsoring","offer-receipt","payment-identifier"],"sourceHost":"api.carbon-cashmere.de","lastUpdated":"2026-08-22T23:29:49.397Z","quality":{"calls30d":1,"uniquePayers30d":1,"lastCalledAt":"2026-08-22T23:29:48.566Z"},"liveness":{},"verified":false,"featured":false}]}