btcnode.uk
Bitcoin data from a real synced full node. No API keys. No signup. Pay per call in USDC.
The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.
Live 402 challenge
Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.
{
"docs": {
"llms": "https://btcnode.uk/llms.txt",
"catalog": "https://btcnode.uk/api/catalog",
"openapi": "https://btcnode.uk/openapi.json"
},
"asset": "USDC",
"error": "payment_required",
"rails": [
"x402 — USDC on Base (EIP-3009 authorization)",
"l402 — Lightning, 1 sat"
],
"pay_to": "0x6a66...43fc",
"sample": {
"example": {
"chain": "main",
"blocks": 967742,
"difficulty": 132757073449487.5,
"verificationprogress": 1
},
"endpoint": "GET /api/info"
},
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x6a667a72d3d36d95421474019aa46f0308d643fc",
"amount": "1000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"message": "This endpoint costs $0.001 per call. No account, no API key, no signup.",
"network": "eip155:8453",
"price_usd": "0.001",
"how_to_pay": [
"Call the endpoint, read the PAYMENT-REQUIRED header (base64 JSON)",
"Sign an EIP-3009 transfer authorization for $0.001 USDC to the pay_to address",
"Re-send the same request with the X-PAYMENT header → 200 + data"
],
"sample_note": "shape of the real response — full catalog at /.well-known/x402 and /api/catalog",
"free_surface": "https://btcnode.uk/llms.txt lists every route and price"
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
Pay 0.005 USDC on Base to 0x6a66…643fc. The signed payment is good for 5 minutes.
- Paid to
- 0x6a66…643fc
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 5000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x6a667a72d3d36d95421474019aa46f0308d643fc",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"pathParams": {
"postId": "t3_abc123"
},
"queryParams": {
"postId": "abc123"
}
},
"output": {
"type": "json",
"example": {
"count": 50,
"comments": [
{
"body": "...",
"score": 42,
"author": "user"
}
]
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"pathParams": {
"type": "object"
},
"queryParams": {
"type": "object",
"properties": {}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
},
"routeTemplate": "/api/reddit/comments/:postId"
}
}Provenance
- Seen in the source catalog
- 2026-06-22 05:23Z
- Last indexed by Roundhouse
- 2026-07-22 01:20Z
- Last enriched (probe, favicon, geo)
- 2026-09-21 12:45Z
- x402 version
- 2
- Max timeout
- 300s
- Liveness probe
- HTTP 402
Hand this page to an agent
Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.
GET api.roundhouseai.io/v0/endpoints
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service btcnode.uk and tell me whether it is worth paying: what a call costs, whether the endpoint answered when last probed, and what its payment record actually shows. curl -s 'https://api.roundhouseai.io/v0/endpoints?q=btcnode.uk' curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>' Then call it: read the price from the live 402 at https://btcnode.uk/api/reddit/comments/:postId, never from a cached figure, and pay with an x402 client. The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except /v0/unified* and /v0/endpoints. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402, or use an organization key from https://roundhouseai.io/dashboard/team. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.