cryptofeed402.site
Agent-readiness audit for a public website or x402 API: checks llms.txt, robots.txt AI-crawler rules, sitemap, OpenAPI, /.well-known/x402, agent card, an MCP initialize probe, a live unpaid 402 challenge (accepts, network, payTo, Bazaar metadata) and listings on Roundhouse, 402 Index and x402 Doctor. Returns a 0-100 score, pass/warn/fail per check with evidence and a concrete fix. Deterministic, no LLM. Free example at /audit/sample. $0.05 USDC per call on Base.
SearchLiveeip155:8453Exactvia cdp
Agent-readinessx402Llms-txtMcpDeveloper-tools
Calls · 30d
1
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 3 snapshots so far.
$0.12
Verified settled volume
17 settlements proven x402 by their on-chain EIP-3009 marker.
$0.050
Listed price
As published in the catalog. Always read the live 402 before paying.
1
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-10-23 16:02Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x93e4B468A88B1f084Efc781ec7A1E2D195a40D22The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Provider
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.
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x93e4B468A88B1f084Efc781ec7A1E2D195a40D22",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://cryptofeed402.site/audit/agent-ready",
"tags": [
"agent-readiness",
"x402",
"llms-txt",
"mcp",
"developer-tools"
],
"iconUrl": "https://cryptofeed402.site/icon.png",
"mimeType": "application/json",
"description": "Agent-readiness audit for a public website or x402 API: checks llms.txt, robots.txt AI-crawler rules, sitemap, OpenAPI, /.well-known/x402, agent card, an MCP initialize probe, a live unpaid 402 challenge (accepts, network, payTo, Bazaar metadata) and listings on Roundhouse, 402 Index and x402 Doctor. Returns a 0-100 score, pass/warn/fail per check with evidence and a concrete fix. Deterministic, no LLM. Free example at /audit/sample. $0.05 USDC per call on Base.",
"serviceName": "cryptofeed402 agent-readiness audit"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"url": "https://cryptofeed402.site"
}
},
"output": {
"type": "json",
"example": {
"grade": "B",
"score": 72,
"checks": [
{
"id": "llms_txt",
"fix": null,
"name": "llms.txt",
"points": 14,
"status": "pass",
"weight": 14,
"evidence": {
"status": 200
}
}
],
"counts": {
"fail": 2,
"pass": 8,
"warn": 2
},
"target": {
"host": "example.com",
"origin": "https://example.com"
},
"summary": "example.com scores 72/100 (B): 8 pass, 2 warn, 2 fail. Biggest gaps: ...",
"audited_at": "2026-10-19T21:00:00.000Z",
"audit_version": "1.0.0"
}
}
},
"schema": {
"type": "object",
"$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"
},
"queryParams": {
"type": "object",
"required": [
"url"
],
"properties": {
"url": {
"type": "string",
"description": "Site to audit: a domain or http(s) URL; public hosts on ports 80/443 only"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"score",
"checks",
"summary"
],
"properties": {
"grade": {
"type": "string"
},
"score": {
"type": "integer",
"maximum": 100,
"minimum": 0
},
"checks": {
"type": "array",
"items": {
"type": "object",
"properties": {
"id": {
"type": "string"
},
"fix": {
"type": [
"string",
"null"
]
},
"name": {
"type": "string"
},
"points": {
"type": "number"
},
"status": {
"enum": [
"pass",
"warn",
"fail"
],
"type": "string"
},
"weight": {
"type": "number"
},
"evidence": {
"type": "object"
}
}
}
},
"counts": {
"type": "object"
},
"summary": {
"type": "string"
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
0.05USDC≈ $0.05 USD
on Base · exact scheme
Pay 0.05 USDC on Base to 0x93e4…40D22. The signed payment is good for 5 minutes.
- Paid to
- 0x93e4…40D22
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 50000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x93e4B468A88B1f084Efc781ec7A1E2D195a40D22",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"url": "https://cryptofeed402.site"
}
},
"output": {
"type": "json",
"example": {
"grade": "B",
"score": 72,
"checks": [
{
"id": "llms_txt",
"fix": null,
"name": "llms.txt",
"points": 14,
"status": "pass",
"weight": 14,
"evidence": {
"status": 200
}
}
],
"counts": {
"fail": 2,
"pass": 8,
"warn": 2
},
"target": {
"host": "example.com",
"origin": "https://example.com"
},
"summary": "example.com scores 72/100 (B): 8 pass, 2 warn, 2 fail. Biggest gaps: ...",
"audited_at": "2026-10-19T21:00:00.000Z",
"audit_version": "1.0.0"
}
}
},
"schema": {
"type": "object",
"$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"
},
"queryParams": {
"type": "object",
"required": [
"url"
],
"properties": {
"url": {
"type": "string",
"description": "Site to audit: a domain or http(s) URL; public hosts on ports 80/443 only"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"score",
"checks",
"summary"
],
"properties": {
"grade": {
"type": "string"
},
"score": {
"type": "integer",
"maximum": 100,
"minimum": 0
},
"checks": {
"type": "array",
"items": {
"type": "object",
"properties": {
"id": {
"type": "string"
},
"fix": {
"type": [
"string",
"null"
]
},
"name": {
"type": "string"
},
"points": {
"type": "number"
},
"status": {
"enum": [
"pass",
"warn",
"fail"
],
"type": "string"
},
"weight": {
"type": "number"
},
"evidence": {
"type": "object"
}
}
}
},
"counts": {
"type": "object"
},
"summary": {
"type": "string"
}
}
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-10-23 16:02Z
- Last indexed by Roundhouse
- 2026-10-26 15:10Z
- Last enriched (probe, favicon, geo)
- 2026-10-24 11:15Z
- 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
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 3 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service cryptofeed402.site 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=cryptofeed402.site' 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://cryptofeed402.site/audit/agent-ready, 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. Either pay over x402 (mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.