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x402-tools Doorcard Diagnostics Endpoint
x402
x402-tools Doorcard Diagnostics Endpoint is a paid API for AI agents from openclawproductions.com, paid per call via x402, $0.16/call, status unknown (last checked 2026-10-12).
Returns a paid JSON diagnostic response for the 'doorcard' SKU, demonstrating x402 HTTP payment flow with EIP-3009 authorization via OpenX402 facilitator.
Price / call$0.16
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 name ('doorcard'), a human-readable note describing the response as a paid diagnostic shape, the price ($0.16), and the title ('Door Card'). Unpaid or incorrectly authorized requests receive HTTP 402 with EIP-3009 extras instead.
Example use cases
Verify x402 payment integration works
“Can you hit the x402 doorcard probe endpoint and confirm my payment header is being accepted by the OpenX402 facilitator? I want to see the successful paid JSON response.”
Debug HTTP 402 payment rejection
“My app is getting HTTP 402 errors back from x402 endpoints — can you call the doorcard diagnostic to check whether the EIP-3009 authorization extras look correct?”
Confirm USDC micropayment flow end-to-end
“I need to validate that a $0.16 USDC payment via the x402 protocol actually settles correctly — can you test the doorcard SKU endpoint and show me what the paid response contains?”
Technical details
Endpoint
GEThttps://openclawproductions.com/api/v1/doorcard?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to test, diagnose, or validate an x402 HTTP payment flow specifically using the OpenX402 facilitator and EIP-3009 authorization scheme. It is purpose-built for probing x402 paid-SKU mechanics rather than delivering production data — ideal for integration testing, debugging 402 flows, or confirming USDC micropayment authorization works end-to-end.
Side effects
- HTTP 402 returned if payment header is missing or invalid — response includes EIP-3009 extras describing required payment
- Facilitator mismatch: only OpenX402 is accepted; other facilitators will be rejected
- Malformed EIP-3009 authorization causes payment verification failure
- Network timeout or server unavailability returns standard HTTP 5xx
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"sku": "doorcard",
"note": "Example paid JSON shape. Not a live settle.",
"price": "$0.16",
"title": "Door Card"
}
}Tags
x402
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