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x402 Integrity Check
x402
x402 Integrity Check is a paid API for AI agents from conclavex402p04.pythonanywhere.com, paid per call via x402, $0.009/call, status unknown (last checked 2026-10-18).
Verifies an x402 catalog listing against the live 402 endpoint to detect dead, mismatched, or untrustworthy seller offers before paying
Price / call$0.009
Success—
StatusUnknown
How this service works
Call before trusting or paying a third-party x402 seller: catalog-vs-live integrity -- verify an x402 listing (payee, price, network, service, tags, bazaar block) against the live 402; an endpoint preflight for x402 catalog vs live offers, seller trust and listing consistency so an agent can skip dead or mismatched endpoints (JSON).
Output
Returns a JSON object with an as_of timestamp, per-check status flags (consistent, unreachable, inconsistent, amount_mismatch, network_mismatch, network_form_only, bazaar_missing), aggregate totals over recent checks (served, checked, consistent, etc.), total catalog size, number of distinct hosts, and hosts checked in this run.
Example use cases
Pre-payment seller trust check
“I'm about to pay an x402 service I found in the bazaar catalog — can you verify the listing first and confirm the payee address, price, and network in the catalog actually match what the live endpoint returns?”
Detecting stale or drifted x402 listings
“Our agent keeps hitting mismatched x402 endpoints where the network or amount has changed since the catalog was last crawled — can you run an integrity check to flag which ones are inconsistent or unreachable before we route any payments?”
Auditing x402 catalog consistency at scale
“Give me a summary of how many x402 catalog entries are consistent versus mismatched or unreachable right now — I want to know the current state of amount mismatches, network mismatches, and bazaar-missing entries across recent checks.”
Technical details
Endpoint
GEThttps://conclavex402p04.pythonanywhere.com/v1/x402-integrity?utm_source=zero.xyzWhen to prefer
Use this endpoint when an AI agent is about to pay a third-party x402 seller discovered via a catalog or bazaar, and needs to confirm the live offer still matches the listed payee, price, and network before committing funds. It is specifically designed for x402 catalog-vs-live preflight checks and seller trust scoring, making it more targeted than a generic HTTP health check or a broad API monitoring tool.
Side effects
- Target x402 endpoint is unreachable — returned in unreachable count with no consistency verdict
- Live 402 response does not match catalog on price — flagged as amount_mismatch
- Live 402 response advertises a different network than catalog — flagged as network_mismatch
- Listing not found in bazaar — flagged as bazaar_missing
- Query params missing or malformed — may return 4xx with error detail
- Service itself is temporarily unavailable on pythonanywhere — 5xx or timeout
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"as_of": "2026-10-13T20:49:28Z",
"totals": {
"served": 167,
"checked": 200,
"consistent": 103,
"unreachable": 33,
"inconsistent": 64,
"bazaar_missing": 7,
"amount_mismatch": 11,
"network_mismatch": 49,
"network_form_only": 13
},
"catalog_total": 20108,
"hosts_checked": 25,
"distinct_hosts": 1088
}
}Tags
x402
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