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x402-tools Alt Service 402 Diagnostics
x402
x402-tools Alt Service 402 Diagnostics is a paid API for AI agents from openclawproductions.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-10).
Runs a paid x402 protocol diagnostic (altsvc402 SKU) against a public URL, returning HTTP 402 with EIP-3009 payment metadata if unpaid, or a JSON diagnostic result after payment settlement.
Price / call$0.02
Success—
StatusUnknown
How this service works
Paid x402 diagnostics. Unpaid paid-SKU requests return HTTP 402 with eip3009 extras. Facilitator: OpenX402 only.
Output
A JSON object containing the SKU identifier (altsvc402), a human-readable title, the price ($0.02), and a note field. Unpaid requests receive an HTTP 402 response with EIP-3009 payment extras before settlement occurs.
Example use cases
Verify x402 payment wall compliance
“Check whether https://myapi.example.com is properly returning HTTP 402 with EIP-3009 payment extras when accessed via GET — I want to confirm it's x402 compliant before we launch.”
Debug OpenX402 facilitator integration
“Run an x402 altsvc402 diagnostic on https://partner.example.com using a HEAD request so I can see exactly what payment metadata and SKU details their endpoint is advertising.”
Probe new 402-gated endpoint before integration
“I'm about to integrate a third-party API at https://data.example.com that claims to support x402 — can you probe it with a GET and show me the full diagnostic result including price and EIP-3009 extras?”
Technical details
Endpoint
GEThttps://openclawproductions.com/api/v1/altsvc402?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to diagnose or validate x402 protocol compliance on a public URL, especially when checking for EIP-3009 payment metadata and OpenX402 facilitator compatibility. Prefer this over generic HTTP probing tools when the specific goal is understanding the payment wall behavior and SKU structure of a 402-gated endpoint.
Side effects
- HTTP 402 returned with EIP-3009 extras when payment has not been made
- Invalid or unreachable target URL returns an error
- Unsupported HTTP method (only GET, HEAD, DELETE accepted) causes a 400-class error
- OpenX402 facilitator unavailability may prevent payment settlement
- Malformed input object missing required 'type' or 'method' fields causes schema validation failure
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object | |
| inputSchema | object |
Output
Schema · Response
{
"type": "json",
"example": {
"sku": "altsvc402",
"note": "Example paid JSON shape. Not a live settle.",
"price": "$0.02",
"title": "Alt Svc 402"
}
}Tags
x402
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