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Delx Commerce X402 Settlement Amount Check
x402
Delx Commerce X402 Settlement Amount Check 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).
Validates whether a settled USDC payment amount matches the expected amount within acceptable tolerance for x402 protocol transactions
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: status ('pass' or 'fail'), drift_raw (numeric difference between settled and expected amounts), actual_raw (the actual settled amount), expected_raw (the expected amount), within_tolerance (boolean), plus evidence fields including input_sha256 for auditability, retained (always false, no data stored), and external_calls count (always 0, fully in-memory).
Example use cases
Post-payment settlement audit
“I just received an x402 USDC payment and want to verify the settled amount '950' matches the accepted amount '1000' — can you run a settlement check and tell me if the drift is within tolerance?”
Agent payment delivery verification
“My AI agent completed an x402 transaction — validate that the settled_raw '1000' matches the accepted_raw '1000' so I have cryptographic proof the payment was delivered correctly.”
Debugging a payment mismatch
“Something looks off with this x402 payment — settled_raw is '980' but accepted_raw was '1000'. Can you check the settlement amount and tell me the drift and whether it passes?”
Technical details
Endpoint
POSThttps://commerce.delx.ai/api/v1/x402/x402-settlement-amount-check?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a verifiable, auditable check that an x402 protocol USDC payment settlement amount matches the accepted amount. Prefer it over manual comparison when you need a signed evidence record (input_sha256) confirming the check was performed in-memory with no data retention and no external calls — ideal for autonomous agent payment pipelines requiring trustless settlement verification.
Side effects
- Invalid or non-numeric settled_raw/accepted_raw values causing parse errors
- Payload exceeding 8192 character maxLength for either field
- Network timeout on POST request
- Missing required fields resulting in validation error
- Payment amount outside tolerance returning within_tolerance: false with non-zero drift_raw
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| settled_raw | string | Settled Raw supplied to X402 Settlement Amount Check; used only for this bounded calculation and processed in memory without retention. |
| accepted_raw | string | Accepted Raw supplied to X402 Settlement Amount Check; used only for this bounded calculation and processed in memory without retention. |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {
"drift_raw": "0",
"actual_raw": "1000",
"expected_raw": "1000",
"within_tolerance": true
},
"schema": "delx/util-x402-settlement-amount-check/v1",
"status": "pass",
"evidence": {
"retained": false,
"input_sha256": "7a76b790f88a7769934e943afa794eaf1387220dd60021c92aba4d959a6a1cff",
"external_calls": 0
},
"operation": "delivery_contract:x402_settlement_amount_check"
}
}Tags
x402
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