x402 Doctor
Grade any x402 endpoint from the vantage agent buyers actually call from — in seconds, free. See exactly what's blocking payment before an AI agent finds it for you.
Conformance Report
The free check above grades one resource against the spec-normative shape. The Conformance Report goes further, on every resource you sell:
- Multi-resource sweep, not just the one URL you pasted
- Settlement-completeness check against the spec
- Non-normative interoperability recommendations (WWW-Authenticate, CORS, response content-type)
- A permanent row on the Verified x402 Endpoints registry if it passes
Already listed and need a re-check after a fix? Re-verify ($29). See our own 8 routes go through it first at /quickstart.
See how publicly-listed endpoints score on the free Doctor Scan leaderboard.
What it checks
- Reachable — the request completes, and we flag Cloudflare/bot-wall symptoms (403 with bot-protection headers is the #1 silent x402 killer — it blocks agent buyers before they ever see your paywall).
- Returns 402 — the resource actually responds with HTTP 402 Payment Required.
- Valid JSON challenge — the 402 body parses as JSON.
- x402Version — present and recognized (1 or 2).
- accepts[] complete — scheme, network, amount, payTo, and resource are all present.
- Network is CAIP-2 — the network field matches the namespace:reference shape (eip155, solana, algorand, etc).
- Input schema — extensions.bazaar.info.input is present, so agent tooling and x402scan know what to send.
- Discovery doc — the origin's /.well-known/x402 exists and lists the resource.
We run this business on these rails ourselves — live endpoints, open-source receipts, honest numbers.
See the live x402 API → x402-receipts on GitHub Read our real revenue at /openx402 Setup — Done For You
Have an API? We’ll make it agent-payable. $149 flat: x402 paywall wiring on one endpoint you already run, pricing, machine-readable catalog listing, proven with a real paid test call. Delivered within 48 hours. You keep all keys — nothing hosted by us.