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ProofAudit.ai Receipt Verification
x402
ProofAudit.ai Receipt Verification is a paid API for AI agents from proofaudit.ai, paid per call via x402, $0.025/call, status unknown (last checked 2026-10-17).
Verifies and returns a sealed, audit-ready receipt for a prior transaction or approval, including a SHA-256 proof hash and on-chain token reference.
Price / call$0.025
Success—
StatusUnknown
How this service works
Capture, verify, approve, and export audit-ready evidence packs for credit, compliance, and financial operations.
Output
Returns a JSON object confirming whether the receipt was successfully verified (success and verified flags), along with a sealed SHA-256 hash (PROOF-prefixed), the on-chain protocol token contract address on Base network, the service ticker (PROOF), and a link to the nodes portal for further inspection.
Example use cases
Credit decision compliance audit
“We just processed a credit approval and need to confirm it has a sealed, tamper-proof receipt on ProofAudit.ai — can you verify the receipt and retrieve the SHA-256 seal and protocol token address for our compliance records?”
Regulatory evidence for financial operations
“Our regulator is asking for verified evidence that a specific financial operation was approved — can you pull the audit receipt from ProofAudit.ai, including the sealed hash and network details, so we can include it in our submission?”
Automated approval audit trail check
“Before we close out this loan file, verify through ProofAudit.ai that the approval has a valid, sealed receipt with a confirmed SHA-256 proof hash and is recorded on the Base network.”
Technical details
Endpoint
GEThttps://proofaudit.ai/api/x402/receipt-verify?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need cryptographically sealed, blockchain-anchored proof that a specific approval or financial operation occurred — particularly for credit, compliance, or regulatory audit workflows where tamper-evident receipts are required. Prefer this over generic audit logs when you need a SHA-256 sealed hash and an on-chain token reference as evidence artifacts.
Side effects
- Receipt not found or unverified — verified field returns false
- Invalid or missing query parameters result in a 400-level error
- Network unavailability on Base blockchain may cause verification to fail
- Malformed request headers may cause authentication failure
- Rate limiting or payment failure (x402) may return a 402 Payment Required response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| outputrequired | object |
Output
Schema · Response
{
"type": "json",
"example": {
"ticker": "PROOF",
"network": "base",
"service": "ProofAudit.ai",
"success": true,
"verified": true,
"nodesPortal": "https://proofaudit.ai/nodes",
"sealedSha256": "PROOF-87B43B8DEB11505A",
"protocolToken": "0x87b43b8dEb11505ADc6898899961d6d419CaBB07"
}
}Tags
x402
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