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YRUZ x402-Check Endpoint Validator
x402
YRUZ x402-Check Endpoint Validator is a paid API for AI agents from yruz.one, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-21).
Checks whether a given URL and HTTP method supports x402 payment-required protocol responses
Price / call$0.005
Success—
StatusUnknown
How this service works
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Output
Returns a JSON object with a 'tool' field set to 'x402-check' and a 'result' object containing details about the x402 payment protocol support status of the queried URL and method combination.
Example use cases
Verify x402 support before integrating
“Before I build an integration, can you check if https://api.someservice.com/v1/results requires x402 payments when called with a POST request?”
Audit a list of API endpoints for x402
“Check if https://data.provider.io/premium/feed supports the x402 payment standard — use GET — so I know whether I need to handle micropayments for it.”
Discover payment-gated APIs in the wild
“I found this endpoint at https://marketplace.example.com/api/prices — can you probe it with a GET to see if it's behind an x402 payment wall?”
Technical details
Endpoint
POSThttps://yruz.one/api/x402-check?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to programmatically determine whether a given API URL implements the x402 payment protocol before attempting to call it or build payment-handling logic around it. It is particularly useful for agent workflows that must dynamically discover whether an endpoint requires a micropayment and what protocol to use, rather than hard-coding that assumption.
Side effects
- Invalid or unreachable URL returns an error or empty result object
- Missing required 'url' field causes request failure
- Non-x402 endpoints return an empty or negative result without clear error
- Timeouts if the target URL is slow to respond
- Malformed URL input may cause parsing errors
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string | endpoint URL (required) |
| method | string | GET (default) or POST |
Output
Schema · Response
{
"type": "json",
"example": {
"tool": "x402-check",
"result": {}
}
}Tags
x402
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