# Delx Commerce — Agent Delivery Dedupe Key

> Delx Commerce — Agent Delivery Dedupe Key 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).

Generates a deterministic deduplication key from item_id, version, and operation fields to uniquely identify and deduplicate agent delivery contracts.

## Facts

- Endpoint: POST https://commerce.delx.ai/api/v1/x402/agent-delivery-dedupe-key?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-agent-delivery-dedupe-key-fca8b1ce
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_FZtmhrxJVm_JMRvslt4n0

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-agent-delivery-dedupe-key-fca8b1ce -d '<json body>'
```

Example prompt: Generate a deduplication key for item 'order-7842', version 'v3', and operation 'ship' so I can check whether this delivery has already been processed.

## When to prefer this

Choose this endpoint when you need a lightweight, pay-per-use, cryptographically verifiable deduplication key for agent delivery operations without any server-side data retention. It is ideal for AI agents that must ensure idempotency across retries or parallel executions and require an auditable, tamper-evident fingerprint. Prefer it over custom hashing logic when you need a standardized, verifiable schema (delx/util-agent-delivery-dedupe-key/v1) compatible with the Delx delivery contract ecosystem.

## Known failure modes

- Missing required fields (item_id, version, or operation) may produce an incomplete or error response
- Inputs exceeding maxLength of 8192 characters may be rejected
- Payment failure via x402 (insufficient USDC balance or unsupported network) will block the request
- Service unavailability may return a non-200 HTTP status

## 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 deterministic hex key (SHA-256 derived) computed from the combination of item_id, version, and operation. Also returns the list of fields used, a confirmation that no data was retained, an input fingerprint (SHA-256 of inputs), the count of external calls made (zero), and a status of 'pass'. The result is verifiable and reproducible for the same inputs.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "item_id": {
   "type": "string",
   "maxLength": 8192,
   "description": "Item Id supplied to Agent Delivery Dedupe Key; used only for this bounded calculation and processed in memory without retention."
  },
  "version": {
   "type": "string",
   "maxLength": 8192,
   "description": "Version supplied to Agent Delivery Dedupe Key; used only for this bounded calculation and processed in memory without retention."
  },
  "operation": {
   "type": "string",
   "maxLength": 8192,
   "description": "Operation supplied to Agent Delivery Dedupe Key; used only for this bounded calculation and processed in memory without retention."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "result": {
   "key": "aef5fced30649f2bf87dbdca6b8a18b6cee2d4e93cc355def6ceb9e4638dba86",
   "fields": [
    "item_id",
    "operation",
    "version"
   ],
   "secret": false
  },
  "schema": "delx/util-agent-delivery-dedupe-key/v1",
  "status": "pass",
  "evidence": {
   "retained": false,
   "input_sha256": "3d156ee2c31bc84cd4cda4a16096876258b2cc3925b827946fff028c0cbff32b",
   "external_calls": 0
  },
  "operation": "delivery_contract:agent_delivery_dedupe_key"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/delx-commerce-agent-delivery-dedupe-key-fca8b1ce/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)