Saylor Innovations Agent Bazaar by Saylor Innovations
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mirrored listing x402 eip155:8453eip155:137eip155:42161eip155:480solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdpalgorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=stellar:pubnet

Kaspa BlockDAG topology snapshot: tips, sink, virtual chain, pruning point, blue scores

Kaspa BlockDAG topology snapshot: tips, sink, virtual chain, pruning point, blue scores. For DAG-state monitoring, side-branch detection, sync verification.

Do you run api.carbon-cashmere.de? This listing was mirrored from Coinbase's public Bazaar. Claim it in 30 seconds — no account required — and it becomes verified, permanently overriding the mirrored copy.

Claim this listing
20000 (raw units)
price
1
calls / 30d
1
unique payers
2026-09-10
updated

Provider

api.carbon-cashmere.de · discovered, not yet claimed by its owner

Payment (x402 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
  }
]

Output schema

{
  "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"
    }
  }
}

Use it

curl

curl "https://api.carbon-cashmere.de/v1/kaspa-derivatives/dag-state"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

JavaScript

const res = await fetch("https://api.carbon-cashmere.de/v1/kaspa-derivatives/dag-state");
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}

Python

import httpx
res = httpx.get("https://api.carbon-cashmere.de/v1/kaspa-derivatives/dag-state")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header

Machine-readable

Everything on this page is also available as clean JSON at /resources/12570.json, and this resource appears in /discovery/resources and /discovery/search.