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Peyon x402 Endpoint Checker
x402
Peyon x402 Endpoint Checker is a paid API for AI agents from peyon.ai, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-29).
Inspects any x402-enabled endpoint's 402 response to extract and validate its version, payment scheme, network, asset type, price, payTo address, resource URL, description, and Bazaar discovery metadata — without making a payment.
Price / call$0.01
Success—
StatusUnknown
How this service works
Checks any x402 endpoint's unpaid 402 response: x402 version, accepted scheme, network, asset (is it USDC), price, payTo, https resource url, description, and Bazaar discovery metadata validated against its schema. Makes no payment.
Output
Returns the parsed contents of the endpoint's 402 response including x402 protocol version, accepted payment scheme, blockchain network, asset type (with a flag indicating whether it is USDC), price, payTo wallet address, the HTTPS resource URL, a human-readable description, and a validation result for the endpoint's Bazaar discovery metadata against its expected schema. No payment is initiated.
Example use cases
Audit x402 API before integrating
“Before I integrate this endpoint, can you check https://peyon.ai/api/some-endpoint with a GET request and tell me its x402 version, price, which network and asset it requires, and whether its Bazaar discovery metadata passes schema validation?”
Verify USDC acceptance on endpoint
“I need to confirm whether https://api.someservice.xyz/data actually accepts USDC payments — can you do an x402 check on it using a HEAD request and tell me the asset, scheme, and payTo address?”
Debug misconfigured x402 response
“Something seems off with the 402 response from https://mypaywall.com/api/resource — can you do an x402 GET check on it and show me the full breakdown: version, network, price, asset, and any Bazaar metadata validation errors?”
Technical details
Endpoint
GEThttps://peyon.ai/api/x402-check?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to inspect, audit, or validate the payment configuration of any x402-protected API before attempting a payment or integration. It is the go-to tool for checking whether an x402 endpoint is properly configured, USDC-compatible, and discoverable on Bazaar — without spending any funds. Prefer it over manually parsing 402 headers or attempting a live payment just to discover pricing and network details.
Side effects
- URL does not return a 402 response — endpoint may not be x402-enabled
- Malformed or non-compliant 402 response body — parsing fails
- Network timeout or unreachable endpoint
- Endpoint requires a method not supported (e.g. POST) — only GET, HEAD, DELETE accepted
- Bazaar metadata absent or fails schema validation — reported as invalid
- Invalid or non-HTTPS URL provided
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
Reviews
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Zero review prompt (fires after every successful call)
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