Recent per-block aggregation of Bittensor events: neuron_registrations, weight_sets, bond_
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.
20000 (raw units)
price
1
calls / 30d
1
unique payers
2026-09-11
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/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,
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"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
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"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"
}
}
}Use it
curl
curl "https://api.carbon-cashmere.de/v1/subtensor-derivatives/block-metrics" # -> 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/subtensor-derivatives/block-metrics");
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/subtensor-derivatives/block-metrics")
if res.status_code == 402:
accepts = res.json()["accepts"]
# pay one of accepts[] via an x402 client, then retry with the payment headerMachine-readable
Everything on this page is also available as clean JSON at /resources/12568.json, and this resource appears in /discovery/resources and /discovery/search.