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Delx Commerce — X402 Pay-To-Match Verifier
x402
Delx Commerce — X402 Pay-To-Match Verifier is a paid API for AI agents from commerce.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-02).
Verifies that an x402 payment's 'pay_to' address matches an expected address, returning a cryptographically-evidenced pass/fail result
Price / call$0.001
Success—
StatusUnknown
How this service works
Pay-per-result APIs for agents. No signup. Exact price. Verifiable delivery. USDC on Base + Solana via x402.
Output
Returns a JSON object with a 'result' containing the actual pay_to address, the expected address, and a boolean 'matched' field. Also includes an 'evidence' object with a SHA-256 hash of the input, confirmation that no data was retained, and a count of zero external calls — providing verifiable, privacy-preserving proof of the comparison.
Example use cases
Validate agent payment routing
“Before I accept this x402 micropayment from the agent, verify that its pay_to address '0xAbCd1234...' actually matches my expected wallet '0xAbCd1234...' — I need cryptographic evidence it's correct.”
Audit x402 transaction recipient
“After receiving an x402 payment, can you confirm the pay_to address '0xDEAD...' matches the expected destination '0xBEEF...' and give me a verifiable record showing no input data was retained?”
Guard against payment misdirection
“My payment pipeline just processed an x402 transaction — verify that the pay_to field '0x9999...' matches the expected address '0x9999...' so I know the funds weren't redirected somewhere else.”
Technical details
Endpoint
POSThttps://commerce.delx.ai/api/v1/x402/x402-pay-to-match?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a verifiable, privacy-preserving check that an x402 payment's pay_to address matches an expected wallet address — especially in automated agent payment pipelines where auditability matters. The evidence object (SHA-256 hash, zero external calls, no data retention) makes it suitable for compliance and audit trails. Prefer it over client-side string comparison when you need a cryptographically-evidenced, tamper-evident record of the match result.
Side effects
- Mismatched addresses return matched:false with status 'fail' rather than an error
- Malformed or non-address strings may still be compared but produce expected mismatches
- Input strings exceeding 8192 characters will be rejected
- Network or payment processing failures may return HTTP 402 or 500 errors
- USDC payment not received results in a 402 Payment Required response before computation begins
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| pay_to | string | Pay To supplied to X402 Pay To Match; used only for this bounded calculation and processed in memory without retention. |
| expected | string | Expected supplied to X402 Pay To Match; used only for this bounded calculation and processed in memory without retention. |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {
"actual": "0x1111111111111111111111111111111111111111",
"matched": true,
"expected": "0x1111111111111111111111111111111111111111"
},
"schema": "delx/util-x402-pay-to-match/v1",
"status": "pass",
"evidence": {
"retained": false,
"input_sha256": "b108f77ef3414c0bad5305e638ab373474fdd56f39a323d1bf49d6743754c925",
"external_calls": 0
},
"operation": "delivery_contract:x402_pay_to_match"
}
}Tags
x402
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