x402_check
x402 developer tool. Use before paying an unknown x402 endpoint, or to debug your own. GET with required url (optional method GET/POST, JSON body for POST). Sends one unpaid request and never pays. Returns JSON: httpStatus, isX402, x402Version, decoded accepts (network, asset, USD amount, payTo, EOA or contract), discovery metadata presence, and pass/warn/fail checks. Any HTTP answer from the target, even 4xx/5xx, is billed; bad input, blocked hosts, connection failures and timeouts are not. Paid per call via x402 (USDC on Base).
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| url | Yes | Public http(s) URL of the x402 endpoint to audit | |
| body | No | Optional JSON body (string, <=8KB) for a POST probe; implies POST | |
| method | No | Probe method: GET (default; retries POST on 405) or POST |