freshproof-api-mainnet.up.railway.app
Railway is a full-stack cloud for deploying web apps, servers, databases, and more with automatic scaling, monitoring, and security.
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.
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 0.01 USDC on Base to 0x79f2…8Ade2. The signed payment is good for 5 minutes.
- Paid to
- 0x79f2…8Ade2
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 10000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x79f29Dade1df4889357817a797516615a918Ade2",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"url": "https://example.com/",
"claim": "Example Domain"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"source": {
"finalUrl": "https://example.com/",
"statusCode": 200,
"contentType": "text/html",
"retrievedAt": "2026-07-28T08:30:00.000Z",
"requestedUrl": "https://example.com/",
"redirectChain": []
},
"verdict": "supported",
"evidence": [
{
"quote": "Example Domain",
"locator": "Visible document heading matched by deterministic verification",
"sourceUrl": "https://example.com/",
"machineLocator": "h1"
}
],
"warnings": [],
"confidence": 0.99,
"contentHash": "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb",
"explanation": "The verdict is based only on the quoted heading found in the retrieved document."
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"url",
"claim"
],
"properties": {
"url": {
"type": "string",
"pattern": "^https?://",
"maxLength": 4096,
"description": "Public HTTP or HTTPS source URL to retrieve."
},
"claim": {
"type": "string",
"maxLength": 1000,
"minLength": 1,
"description": "Claim to evaluate against evidence located in the source."
}
},
"additionalProperties": false
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"verdict",
"confidence",
"evidence",
"source",
"contentHash",
"explanation",
"warnings"
],
"properties": {
"source": {
"type": "object",
"required": [
"requestedUrl",
"finalUrl",
"redirectChain",
"statusCode",
"contentType",
"retrievedAt"
],
"properties": {
"finalUrl": {
"type": "string",
"pattern": "^https?://"
},
"statusCode": {
"type": "integer",
"maximum": 599,
"minimum": 100
},
"contentType": {
"type": "string",
"minLength": 1
},
"retrievedAt": {
"type": "string",
"pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d(?::[0-5]\\d(?:\\.\\d+)?)?(?:Z))$"
},
"requestedUrl": {
"type": "string",
"pattern": "^https?://"
},
"redirectChain": {
"type": "array",
"items": {
"type": "string",
"pattern": "^https?://"
}
}
},
"additionalProperties": false
},
"verdict": {
"enum": [
"supported",
"contradicted",
"insufficient_evidence",
"ambiguous"
],
"type": "string"
},
"evidence": {
"type": "array",
"items": {
"type": "object",
"required": [
"quote",
"locator",
"sourceUrl"
],
"properties": {
"quote": {
"type": "string",
"minLength": 1
},
"locator": {
"type": "string",
"minLength": 1
},
"sourceUrl": {
"type": "string",
"pattern": "^https?://"
},
"contextAfter": {
"type": "string"
},
"evidenceRank": {
"type": "integer",
"maximum": 3,
"minimum": 1
},
"contextBefore": {
"type": "string"
},
"evidenceDigest": {
"type": "string",
"pattern": "^[a-f0-9]{64}$"
},
"machineLocator": {
"type": "string",
"minLength": 1
}
},
"additionalProperties": false
}
},
"warnings": {
"type": "array",
"items": {
"type": "string"
}
},
"confidence": {
"type": "number",
"maximum": 1,
"minimum": 0
},
"contentHash": {
"type": "string",
"pattern": "^[a-f0-9]{64}$"
},
"explanation": {
"type": "string",
"minLength": 1
}
},
"additionalProperties": false
}
}
}
}
}
},
"payment-identifier": {
"info": {
"required": true
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"required"
],
"properties": {
"id": {
"type": "string",
"pattern": "^[a-zA-Z0-9_-]+$",
"maxLength": 128,
"minLength": 16
},
"required": {
"type": "boolean"
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-08-02 07:09Z
- Last indexed by Roundhouse
- 2026-08-30 01:00Z
- Last enriched (probe, favicon, geo)
- 2026-09-13 12:15Z
- x402 version
- 2
- Max timeout
- 300s
- Liveness probe
- HTTP 404
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. 5 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 freshproof-api-mainnet.up.railway.app 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=freshproof-api-mainnet.up.railway.app' 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://freshproof-api-mainnet.up.railway.app/v1/verify, 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.