x402-tools Payload Seal Diagnostic

x402

x402-tools Payload Seal Diagnostic is a paid API for AI agents from openclawproductions.com, paid per call via x402, $0.2/call, status unknown (last checked 2026-10-12).

Returns a paid diagnostic JSON payload (SKU: payloadseal) to verify x402 micropayment flow and eip3009 authorization mechanics via the OpenX402 facilitator.

Price / call$0.2

Seller volume →—

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 ('payloadseal'), a human-readable title ('Payload Seal'), the price ('$0.20'), and a diagnostic note confirming the paid shape. Unpaid requests return HTTP 402 with eip3009-formatted payment requirement extras instead.

Example use cases

Verify x402 payment gate is live

“Check that the Payload Seal endpoint on OpenX402 properly blocks unpaid requests with a 402 and returns the diagnostic JSON once the $0.20 USDC payment goes through.”

Debug eip3009 authorization extras

“I'm getting a 402 back from the payloadseal SKU — can you pull the full error response so I can inspect the eip3009 extras the OpenX402 facilitator is returning?”

Confirm paid SKU unlocks after settlement

“After my USDC payment settles through OpenX402, call the Payload Seal diagnostic and show me the JSON response to confirm the SKU unlocked correctly.”

Technical details

Endpoint

GEThttps://openclawproductions.com/api/v1/payloadseal?utm_source=zero.xyz

When to prefer

Choose this endpoint when you need to verify that an x402 micropayment integration — specifically eip3009-based USDC authorization via the OpenX402 facilitator — is working end to end. It is the canonical diagnostic SKU for testing payment gating: it reliably returns HTTP 402 with structured eip3009 extras on unpaid requests and a known JSON payload on successful payment, making it ideal for integration testing, debugging facilitator configuration, or confirming settlement flows.

Side effects

HTTP 402 returned when payment header is absent or invalid — response includes eip3009 extras describing required payment
Payment sent through unsupported facilitator (non-OpenX402) will not unlock the endpoint
Malformed eip3009 authorization causes payment rejection and 402 loop
Network or USDC settlement delay may cause transient 402 even after payment intent
Invalid or missing 'properties' query parameter may return error or empty diagnostic

Input

Schema · Request body

Field	Type	Description
properties	string

Output

Schema · Response

{
  "type": "json",
  "example": {
    "sku": "payloadseal",
    "note": "Example paid JSON shape. Not a live settle.",
    "price": "$0.20",
    "title": "Payload Seal"
  }
}

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