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x402 Delivery Receipt Verifier
x402
x402 Delivery Receipt Verifier is a paid API for AI agents from scanpay-edge.alextaghiashvili.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-11-02).
Verifies a ScanPay x402 delivery receipt by checking EIP-191 signature, canonical hash, and output SHA-256 integrity
Price / call$0.001
Success—
StatusUnknown
How this service works
Pay-per-call x402 APIs for AI agents: OpenAI-compatible LLM chat, perp funding and arbitrage spreads, crypto prices, gas, FX, Solana SPL mint audit, token price by contract, x402 delivery-receipt verification, web search, clean page extraction, batch tools and deterministic code-security scanning. USDC on Base or Solana, no signup, no API key, from $0.0001 a call.
Output
Returns a JSON object with: a `valid` boolean, per-check breakdown (`scheme`, `signature`, `body`, `report_hash`), the recovered EIP-191 `signer` address, `expected_signer`, `report_hash`, `output_sha256`, `body_matches`, `payer`, `tx`, `path`, `method`, `scheme`, `network`, and `product` fields. On failure, includes an `error` message describing what was malformed.
Example use cases
Verifying AI agent payment receipt
“I just got back a receipt from a ScanPay x402 API call my agent made — can you verify the receipt string is authentic, confirm who signed it, and check that the output SHA-256 matches?”
Auditing paid payload integrity
“Before I trust this x402 API response, please verify the delivery receipt, check that the body hash matches the expected SHA-256 I have on file, and tell me if the signature is valid.”
Confirming signer identity on receipt
“I need to confirm that this x402 receipt was signed by the expected ScanPay signer address — can you run verification on the receipt and tell me the signer, whether the scheme checks out, and if the report hash is correct?”
Technical details
Endpoint
GEThttps://scanpay-edge.alextaghiashvili.workers.dev/api/v1/receipt-verify?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need cryptographic proof that an x402 delivery receipt is authentic — specifically when you need EIP-191 signature recovery, canonical hash validation, and SHA-256 output integrity checked in a single call. Prefer this over manual on-chain lookups when operating in an AI agent context with ScanPay x402 pay-per-call APIs and need fast, cheap ($0.001 USDC) programmatic receipt auditing.
Side effects
- Malformed receipt string returns valid=false with error 'malformed receipt' and all checks as null/false
- Missing required `receipt` query parameter returns an error response
- Invalid or mismatched SHA-256 causes body_matches=false and check.body=false
- Signature mismatch causes checks.signature=false and signer may differ from expected_signer
- Network or upstream timeout from the Cloudflare Worker edge function
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"tx": null,
"path": null,
"error": "malformed receipt",
"payer": null,
"valid": false,
"checks": {
"body": null,
"scheme": false,
"signature": false,
"report_hash": false
},
"method": null,
"scheme": null,
"signer": "0x1E04f5046500e5369E17AF993Dc60aC29D83efc9",
"network": null,
"product": "scanpay.receipt_verify",
"price_usd": 0.001,
"report_hash": "0x44136fa355b3678a1146ad16f7e8649e94fb4fc21fe77e8310c060f61caaff8a",
"body_matches": null,
"output_sha256": null,
"expected_signer": "0x1E04f5046500e5369E17AF993Dc60aC29D83efc9"
}
}Tags
x402
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