# Delx Commerce X402 Registry Route Check

> Delx Commerce X402 Registry Route 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 an X402 route object is well-formed and contains all required fields for registry compliance

## Facts

- Endpoint: POST https://commerce.delx.ai/api/v1/x402/x402-registry-route-check?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/delx-commerce-x402-registry-route-check-82b7491c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_9HT7vxmVamIMBRkQCgWS4

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-registry-route-check-82b7491c -d '<json body>'
```

Example prompt: Can you check whether this X402 route object I've put together is valid and has all the required fields before I submit it to the registry?

## When to prefer this

Use this endpoint when you need to verify an X402 route object is correctly structured before registering it, submitting it to a facilitator, or deploying an agent that depends on it. Ideal for pre-flight validation in automated pipelines where correctness must be confirmed cheaply ($0.001 USDC) without side effects. Prefer this over manual inspection when operating at scale or when you need cryptographic evidence (SHA-256 input hash) that the check was performed on a specific payload without data retention.

## Known failure modes

- Malformed or non-object route input causes validation failure with missing_fields populated
- Route missing required POST method field results in checks.post = false
- Exceeding 128 property limit on the route object may cause rejection
- Empty or null route body returns invalid result with all checks failing

## 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 a 'valid' boolean, a 'checks' object showing which individual checks passed (e.g. POST method present, required fields present), a 'missing_fields' array listing any absent required fields, a 'status' of pass or fail, and an 'evidence' block containing the SHA-256 hash of the input and confirmation that the data was not retained externally.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "route": {
   "type": "object",
   "description": "Route supplied to X402 Registry Route 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": {
   "valid": true,
   "checks": {
    "post": true,
    "required_present": true
   },
   "missing_fields": []
  },
  "schema": "delx/util-x402-registry-route-check/v1",
  "status": "pass",
  "evidence": {
   "retained": false,
   "input_sha256": "b926fbfd40e72c78cd55d9fac911150c42800e7bd73fe82f0e36994607482be0",
   "external_calls": 0
  },
  "operation": "delivery_contract:x402_registry_route_check"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/delx-commerce-x402-registry-route-check-82b7491c/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)