# Delx Commerce x402 Server Probe

> Delx Commerce x402 Server Probe is a paid API for AI agents from commerce.delx.ai, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-02).

Probes a URL to check whether it is a reachable and valid x402-compliant API server, returning discovery health checks, tool counts, and resource counts.

## Facts

- Endpoint: POST https://commerce.delx.ai/api/v1/x402/server-probe?utm_source=zero.xyz
- Price: $0.01/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-server-probe-d6a9572d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_U3ZqxT9qwB-dhZSuWWqdY

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-server-probe-d6a9572d -d '<json body>'
```

Example prompt: Can you probe https://api.delx.ai to check if it's a reachable x402 server and tell me how many tools and resources it exposes? Use a 10-second timeout.

## When to prefer this

Use this endpoint when you need to verify that a specific URL hosts a live, x402-protocol-compliant API before directing an AI agent to call it, or when auditing pay-per-result APIs for health and discovery metadata. It is purpose-built for x402 infrastructure validation rather than general HTTP health checks or uptime monitoring.

## Known failure modes

- Target URL is unreachable or times out — checks array will show reachable:false with an error message
- URL is not an x402-compliant server — discovery check returns non-200 status
- Invalid or missing URL parameter — request rejected with validation error
- Timeout value out of allowed range (1–15 seconds) — request rejected
- Target server returns unexpected response format — partial or empty check results

## 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 list of named health checks (each with URL, status code, reachability flag, and any error), plus aggregate counts for tools, resources, checks performed, and reachable endpoints on the target x402 server.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "url": {
   "type": "string"
  },
  "timeout": {
   "type": "integer",
   "maximum": 15,
   "minimum": 1
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "result": {
   "checks": [
    {
     "url": "https://api.delx.ai/.well-known/x402",
     "name": "x402_discovery",
     "error": "",
     "status": 200,
     "reachable": true
    }
   ],
   "tool_count": 10,
   "check_count": 5,
   "resource_count": 20,
   "reachable_count": 5
  },
  "tool_name": "util_x402_server_probe"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/delx-commerce-x402-server-probe-d6a9572d/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)