# Delx Commerce X402 Delivery Receipt Check

> 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.

## Facts

- Endpoint: POST https://commerce.delx.ai/api/v1/x402/x402-delivery-receipt-check?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-01
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/delx-commerce-x402-delivery-receipt-check-ba2b9d5d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_0asqclMQh5z-Ks8vSekmz

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability delx-commerce-x402-delivery-receipt-check-ba2b9d5d -d '<json body>'
```

Example prompt: Can you check this X402 delivery receipt and tell me if it's structurally valid, whether delivery was confirmed, and if any required fields are missing?

## When to prefer this

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.

## Known failure modes

- 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

## 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).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "receipt": {
   "type": "object",
   "description": "Receipt supplied to X402 Delivery Receipt Check; used only for this bounded calculation and processed in memory without retention.",
   "maxProperties": 128,
   "additionalProperties": true
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "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"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/delx-commerce-x402-delivery-receipt-check-ba2b9d5d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from commerce.delx.ai](https://www.zero.xyz/host/commerce.delx.ai/llms.txt)