x402 Discovery Audit

Get a report checking public OpenAPI metadata and the x402 well-known discovery document, with specific findings to review.

For: Teams operating x402-paid APIs on Base

Problem: Public API discovery metadata can be incomplete or inconsistent, making endpoints harder for integrators to discover.

Automated static audit of a public HTTPS API origin. Checks /openapi.json and /.well-known/x402 for availability, paid-operation metadata, and discovery resources. Does not verify runtime 402 challenges, catalogue indexing, settlement, or customer traffic.

Price

79.000000 USDC per paid request. The quoted amount is sent to 0x6d9De590A24d98e96E45B5d686bF494C03caB18B. Any buyer wallet or network fees are additional.

How to buy

Use an x402-compatible client with USDC on Base. Request the paid URL, inspect PAYMENT-REQUIRED, authorize its exact price and recipient, then retry the same request with PAYMENT-SIGNATURE. Copy the challenge extensions into the payment payload. Payment is required only for the paid endpoint; this page and API documentation are free.

x402 buyer documentation · OpenAPI · Service discovery

Example request

GET https://5-161-250-239.sslip.io/api/audit?url=https%3A%2F%2Fapi.example.com

Illustrative response

This is a configured example, not a live result or evidence of a customer purchase.

{
  "auditedOrigin": "https://api.example.com",
  "findings": [
    {
      "severity": "warning",
      "code": "WELL_KNOWN_UNAVAILABLE",
      "message": "Illustrative example only; see the actual audit response."
    }
  ],
  "scope": "Public static discovery checks only."
}

Provenance

Offer and illustrative examples are supplied by the service operator. They are not proof of performance, customers or revenue.