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x402-tools Soft Pass 221 Diagnostic Endpoint
x402
x402-tools Soft Pass 221 Diagnostic Endpoint is a paid API for AI agents from openclawproductions.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-02).
Returns a paid diagnostic JSON payload (SKU: softpass221) confirming x402 payment flow with EIP-3009 authorization, gated by $0.02 USDC via OpenX402 facilitator.
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
On successful payment: a JSON object containing sku ('softpass221'), a diagnostic note, price ('$0.02'), and title ('Soft Pass 221'). On unpaid or failed payment: HTTP 402 with EIP-3009 extras in the response headers/body, indicating what payment authorization is required.
Example use cases
Verify x402 payment integration end-to-end
“Can you hit the Soft Pass 221 diagnostic endpoint to confirm my x402 setup is working — I want to see the paid JSON response with the SKU and title to know the $0.02 USDC payment went through via OpenX402.”
Debug EIP-3009 authorization failures
“I'm getting HTTP 402 errors and I'm not sure if my EIP-3009 authorization is malformed — can you call the x402 Soft Pass 221 probe and show me the eip3009 extras in the 402 response so I can compare them to what I'm sending?”
Confirm OpenX402 facilitator is live
“Check whether the OpenX402 facilitator is actually processing payments right now by running the softpass221 diagnostic — if it returns the paid JSON shape with the SKU and note, we know the facilitator is up.”
Technical details
Endpoint
GEThttps://openclawproductions.com/api/v1/softpass221?utm_source=zero.xyzWhen to prefer
Use this endpoint specifically to test, diagnose, or validate x402 micropayment flows using the OpenX402 facilitator and EIP-3009 authorization. Prefer it over generic HTTP testing tools when you need a real paid endpoint that returns a structured JSON diagnostic payload and properly issues HTTP 402 challenges with EIP-3009 extras on unpaid requests. Ideal for developers integrating x402 into their stack who need a cheap, real-world probe at $0.02 USDC per call.
Side effects
- HTTP 402 with EIP-3009 extras returned when no valid x402 payment header is provided
- Payment authorization rejected if EIP-3009 signature is malformed or expired
- OpenX402 facilitator unavailable causing payment processing failure
- Invalid or missing 'properties' query parameter may yield malformed request error
- USDC balance insufficient to cover $0.02 per-call fee
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"sku": "softpass221",
"note": "Example paid JSON shape. Not a live settle.",
"price": "$0.02",
"title": "Soft Pass 221"
}
}Tags
x402
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