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ScanPay x402 Auditor
x402
ScanPay x402 Auditor is a paid API for AI agents from scanpay-edge.alextaghiashvili.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-11-01).
Fetches a public paid endpoint unpaid, validates its x402 payment challenge compliance, and returns a scored checklist covering version, accepts fields, resource match, CORS, and latency.
Price / call$0.001
Success—
StatusUnknown
How this service works
Check x402 endpoint uptime and payability: fetch a public paid endpoint unpaid, validate its 402 challenge (x402Version, accepts fields, resource match, GET/POST parity, CORS exposure, latency) and return an up/down verdict plus a scored checklist.
Output
A scored compliance checklist detailing: x402Version correctness, accepts field validity, resource match between request URL and challenge, GET/POST parity, CORS header exposure, and latency measurement — each item marked pass/warn/fail with an overall compliance score.
Example use cases
Pre-launch x402 endpoint compliance check
“Before I go live, can you audit my paid endpoint at https://api.myproject.com/data to make sure the 402 challenge is fully x402-compliant — check the version, accepts fields, resource match, and CORS exposure?”
Debugging a broken x402 payment flow
“My x402 payment endpoint at https://paywall.myservice.io/report keeps failing for clients — can you run a full compliance check and tell me which fields in the 402 challenge are misconfigured?”
Third-party x402 API vetting
“I want to integrate a paid API at https://partner.example.com/feed — can you audit its x402 implementation and give me a scored checklist of whether it properly follows the spec before I build against it?”
Technical details
Endpoint
GEThttps://scanpay-edge.alextaghiashvili.workers.dev/api/v1/x402-check?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to verify that a specific public HTTP endpoint correctly implements the x402 payment protocol spec — covering challenge format, field completeness, CORS safety, and latency. Prefer this over manual inspection or generic HTTP testing tools when you want a machine-readable, scored compliance report specifically calibrated to the x402 standard.
Side effects
- Target endpoint is not publicly accessible or times out — latency check fails
- Target endpoint does not return a 402 status at all — no challenge to validate
- Malformed or missing x402Version field in the 402 response — flagged as non-compliant
- CORS headers absent or misconfigured — CORS check fails with warning
- Network error reaching the target from the Cloudflare Worker edge — returns error
- Input URL missing or invalid — request rejected before audit begins
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"note": "Unpaid fetch only. Reports whether an autonomous x402 client can parse and pay your 402 challenge.",
"score": 0,
"checks": [
{
"ok": false,
"check": "reachability",
"detail": "request failed: timed out"
},
{
"ok": false,
"check": "cors_exposes_payment_headers",
"detail": "access-control-expose-headers=missing (JS clients cannot read the challenge in browsers)"
}
],
"target": "https://example.com/api/paid",
"accepts": null,
"product": "scanpay.x402check",
"verdict": "broken",
"findings": [],
"price_usd": 0.01,
"latency_ms": 125,
"http_status": null
}
}Tags
x402
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