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Delx Commerce X402 Delivery Receipt Check
x402
Delx Commerce X402 Delivery Receipt Check is a paid API for AI agents from commerce.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-01).
Validates an X402 delivery receipt to confirm a pay-per-result API delivery was completed, structurally sound, and contains all required fields.
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 containing: the parsed receipt fields (resource, delivered status, amount_raw, payment_id), a shape_valid boolean, a list of any missing_fields, an overall status ('pass' or 'fail'), and evidence metadata including whether input was retained (always false), a SHA-256 hash of the input, and the number of external calls made (always 0).
Example use cases
Agent auditing its own paid API call
“I just made a pay-per-result API call and got back a receipt — can you validate it against the X402 standard and tell me if the delivery is confirmed and whether any fields are missing?”
Verifying USDC payment delivery on-chain
“Here's the delivery receipt from my Delx API call with payment ID pay-1 for resource https://api.delx.ai/x402/utility/example — please check if the receipt is valid and delivery is marked as true.”
Pre-audit before releasing funds
“Before I consider this transaction settled, can you run this X402 receipt through the delivery check and confirm it passes — especially that 'delivered' is true and the structure is complete?”
Technical details
Endpoint
POSThttps://commerce.delx.ai/api/v1/x402/x402-delivery-receipt-check?utm_source=zero.xyzWhen to prefer
Use this endpoint when an AI agent or automated system needs to programmatically verify that an X402 delivery receipt is well-formed and confirms delivery — especially after making a USDC micro-payment on Base or Solana via the x402 protocol. Prefer this over manual inspection when building trust layers, audit trails, or settlement logic into agent workflows that consume pay-per-result APIs.
Side effects
- Missing or malformed receipt object returns shape_valid: false with populated missing_fields
- Receipt object exceeds 128 properties (maxProperties limit) causes rejection
- Invalid JSON structure in receipt body returns a parsing error
- Network timeout or service unavailability returns a non-200 HTTP error
- Payment of $0.001 USDC required — missing or invalid x402 payment header causes 402 Payment Required
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| receipt | object | Receipt supplied to X402 Delivery Receipt Check; used only for this bounded calculation and processed in memory without retention. |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {
"receipt": {
"resource": "https://api.delx.ai/x402/utility/example",
"delivered": true,
"amount_raw": "1000",
"payment_id": "pay-1"
},
"shape_valid": true,
"missing_fields": []
},
"schema": "delx/util-x402-delivery-receipt-check/v1",
"status": "pass",
"evidence": {
"retained": false,
"input_sha256": "834990994a10325e5e595578ebbcf61447f6bc3ccd77c2008ce768f630056c28",
"external_calls": 0
},
"operation": "delivery_contract:x402_delivery_receipt_check"
}
}Tags
x402
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