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x402-tools Verb 404 Drift Diagnostic
x402
x402-tools Verb 404 Drift Diagnostic 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 HTTP diagnostics check (verb/404/drift analysis) on a target URL, returning structured diagnostic data after USDC micropayment via EIP-3009.
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
Returns a JSON object containing the SKU name ('verb404drift'), a descriptive title ('Verb 404 Drift'), the price ($0.02), and a diagnostic note. On unpaid requests, returns HTTP 402 with EIP-3009 payment extras indicating the required payment details.
Example use cases
Validate new x402-gated API endpoint
“I just deployed a new paid API at https://myapi.dev — can you run an x402 verb-drift diagnostic on it with a GET request to confirm it's returning the right 402 and EIP-3009 payment fields?”
Debug broken 402 payment wall
“My endpoint at https://payments.acme.com/data seems to be misbehaving — can you probe it with a HEAD request using the x402 verb-drift check to see if the 402 response and eip3009 extras look correct?”
Audit x402 compliance before launch
“Before I go live, can you run the verb-drift diagnostic on https://staging.openclawproductions.com with a DELETE request to make sure the x402 pipe check passes and the payment metadata is properly structured?”
Technical details
Endpoint
GEThttps://openclawproductions.com/api/v1/verb404drift?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to diagnose, validate, or audit x402 HTTP payment-wall behavior on a URL — specifically for verb drift, 402 response correctness, and EIP-3009 extras. Best suited for developers and agents building or testing x402-compliant APIs who need a low-cost ($0.02 USDC) automated probe. Prefer this over generic HTTP testers when you specifically need x402/EIP-3009 payment protocol validation.
Side effects
- HTTP 402 returned if payment not included — includes EIP-3009 extras for payment instructions
- Invalid or unreachable target URL returns an error
- Unsupported HTTP method (only GET, HEAD, DELETE allowed) results in validation error
- Facilitator other than OpenX402 not supported — non-OpenX402 facilitators will be rejected
- Malformed input schema (missing required 'type' or 'method' fields) causes request failure
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object | |
| inputSchema | object |
Output
Schema · Response
{
"type": "json",
"example": {
"sku": "verb404drift",
"note": "Example paid JSON shape. Not a live settle.",
"price": "$0.02",
"title": "Verb 404 Drift"
}
}Tags
x402
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