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x402 Lifecycle Reconcile
x402
x402 Lifecycle Reconcile is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-30).
Reconciles an x402 payment lifecycle end-to-end by comparing payment requirement, payment response, delivery receipt, and settlement reference metadata to produce a deterministic field-by-field verdict of proven, conflicting, or missing.
Price / call$0.005
Success—
StatusUnknown
How this service works
Verify an x402 purchase actually settled and delivered what you paid for: submit bounded, non-secret metadata for the payment requirement, payment response, delivery receipt and settlement reference, and receive a single deterministic verdict — proven, conflicting, or missing — field by field, suitable to attach to a refund request or dispute. Limitation: verdicts are computed from the artifacts you provide; we do not fetch chain state or contact the provider on your behalf.
Output
A deterministic, field-by-field reconciliation verdict for each artifact submitted (payment_requirement, payment_response, delivery_receipt, settlement_ref). Each field is labeled as proven, conflicting, or missing based solely on the metadata provided. The result is structured and suitable for attaching directly to a refund request or audit log.
Example use cases
Refund dispute evidence package
“I never received what I paid for with x402 — can you cross-check my payment requirement, payment response, and the delivery receipt I got and tell me field by field what's proven, conflicting, or missing so I can submit a refund claim?”
Post-purchase audit before settlement
“Before I mark this x402 transaction as complete, run a reconciliation across the payment requirement, payment response, delivery receipt, and settlement reference I have and flag any fields that don't line up.”
Diagnosing a missing delivery receipt
“I have the payment requirement and payment response for an x402 call but I never got a delivery receipt — can you run the lifecycle reconcile with what I have and tell me exactly which fields are missing or conflicting?”
Technical details
Endpoint
POSThttps://api.delx.ai/api/v1/x402/lifecycle-reconcile?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a structured, deterministic audit of an x402 payment lifecycle using artifacts you already possess — particularly when preparing a refund request or dispute. It is not a live chain-state checker or provider contact tool; prefer it when you have the four key artifacts (payment requirement, payment response, delivery receipt, settlement reference) and need a trustless, offline field-level comparison without making external calls.
Side effects
- Missing required artifact objects result in fields being marked as 'missing' rather than an error response
- Conflicting field values across artifacts return a 'conflicting' verdict rather than resolving the truth
- Chain state is not verified — verdicts reflect only the provided metadata, not on-chain reality
- Private keys or signatures included in input are rejected or ignored for security reasons
- Malformed or incomplete JSON objects for any artifact may result in partial verdicts or validation errors
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| settlement_ref | object | Bounded settlement reference metadata. No private keys. |
| delivery_receipt | object | Bounded delivery receipt metadata. No payload bodies or secrets. |
| payment_response | object | Bounded non-secret payment response metadata. No signatures. |
| payment_requirement | object | Bounded non-secret payment requirement metadata from the 402. |
Output
Schema · Response
{
"type": "json",
"example": {
"fields": {
"payTo": {
"status": "proven",
"values": {
"settlement_ref": "0xabc",
"delivery_receipt": "0xabc",
"payment_response": "0xabc",
"payment_requirement": "0xabc"
}
},
"amount": {
"status": "proven",
"values": {
"settlement_ref": "5000",
"delivery_receipt": "5000",
"payment_response": "5000",
"payment_requirement": "5000"
}
},
"network": {
"status": "proven",
"values": {
"settlement_ref": "eip155:8453",
"delivery_receipt": "eip155:8453",
"payment_response": "eip155:8453",
"payment_requirement": "eip155:8453"
}
},
"resource": {
"status": "proven",
"values": {
"settlement_ref": "https://api.example/pay",
"delivery_receipt": "https://api.example/pay",
"payment_response": "https://api.example/pay",
"payment_requirement": "https://api.example/pay"
}
}
},
"verdict": "proven",
"limitation": "Verdicts are computed from the artifacts you provide; we do not fetch chain state or contact the provider."
}
}Tags
x402
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