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x402-tools Settle Once Diagnostic
x402
x402-tools Settle Once Diagnostic is a paid API for AI agents from openclawproductions.com, paid per call via x402, $0.03/call, status unknown (last checked 2026-10-02).
Performs a paid x402 protocol diagnostic ('settle once' SKU) that validates payment flow and returns diagnostic JSON after successful USDC micropayment
Price / call$0.03
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 ('settleonce'), a price confirmation ('$0.03'), a title ('Settle Once'), and a diagnostic note. An unpaid request returns HTTP 402 with EIP-3009 payment extras; a paid request returns the diagnostic payload confirming successful payment settlement.
Example use cases
Validate x402 payment gate on new API
“I just set up x402 payment gating on my API at https://myapi.example.com — can you run a settle-once diagnostic with a GET request to confirm the 402 flow and eip3009 extras look correct?”
Debug failing micropayment integration
“My x402 payment integration at https://payments.myapp.io seems broken — run a settle-once probe on it with a GET method and tell me what the diagnostic returns.”
Confirm live facilitator pipe before launch
“Before we go live, can you do a settle-once x402 pipe check on https://api.myplatform.com via GET to make sure the OpenX402 facilitator connection is working and payments will settle?”
Technical details
Endpoint
GEThttps://openclawproductions.com/api/v1/settleonce?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to validate or diagnose an x402 HTTP 402 payment flow end-to-end, specifically using the 'settle once' SKU via the OpenX402 facilitator. It is the right choice for developers building or debugging x402-gated APIs who need to confirm that USDC micropayments, EIP-3009 extras, and facilitator settlement are functioning correctly. Prefer this over generic HTTP probing tools when the goal is specifically x402 protocol compliance testing.
Side effects
- HTTP 402 returned if payment is not included or fails — includes eip3009 payment instruction extras so the agent can retry with payment
- Invalid or unreachable target URL returns an error response
- Unsupported HTTP method (anything other than GET/HEAD/DELETE) will be rejected
- Non-OpenX402 facilitators are not supported and will fail payment settlement
- Malformed input object missing required 'type' or 'method' fields returns a schema validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"sku": "settleonce",
"note": "Example paid JSON shape. Not a live settle.",
"price": "$0.03",
"title": "Settle Once"
}
}Tags
x402
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