# x402-tools SIWx-Only Paid Diagnostics

> x402-tools SIWx-Only Paid Diagnostics is a paid API for AI agents from openclawproductions.com, paid per call via x402, $0.03/call, status unknown (last checked 2026-10-11).

Runs a paid HTTP 402 diagnostic check on a public URL, returning x402 metadata including EIP-3009 payment extras; requires SIWx (Sign-In with X) authentication via OpenX402 facilitator.

## Facts

- Endpoint: GET https://openclawproductions.com/api/v1/siwxonly?utm_source=zero.xyz
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-tools-siwx-only-paid-diagnostics-e4787593
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_emTH330aU_8sWFj_1JdsV

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 x402-tools-siwx-only-paid-diagnostics-e4787593
```

Example prompt: Run an x402 diagnostic on https://myapi.example.com using a GET request and tell me what payment metadata and EIP-3009 extras it returns.

## When to prefer this

Choose this endpoint when you need to inspect, debug, or validate x402 HTTP 402 payment-gating behavior on a public URL, especially when working with the OpenX402 facilitator and EIP-3009 payment metadata. It is specifically suited for developers and agents building or testing x402-compatible APIs who need a paid diagnostic probe that itself demonstrates the x402 payment flow.

## Known failure modes

- Unpaid request returns HTTP 402 with EIP-3009 payment details instead of diagnostic result
- Target URL is unreachable or not a valid 402 endpoint — returns error or empty result
- Non-SIWx facilitator used — rejected by OpenX402 facilitator requirement
- Invalid HTTP method provided (must be GET, HEAD, or DELETE)
- Malformed or missing URL/origin parameter — defaults to origin's own Pipe Check endpoint

## How this service works

Paid x402 diagnostics. Unpaid paid-SKU requests return HTTP 402 with eip3009 extras. Facilitator: OpenX402 only.

## Output

A JSON object containing the SKU identifier (e.g. 'siwxonly'), a human-readable title, the price of the endpoint, and a note. Unpaid requests return HTTP 402 with full EIP-3009 payment extras in the response headers/body for inspection.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    }
   }
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    }
   }
  },
  "inputSchema": {
   "type": "object"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "sku": "siwxonly",
  "note": "Example paid JSON shape. Not a live settle.",
  "price": "$0.03",
  "title": "SIWx Only"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-tools-siwx-only-paid-diagnostics-e4787593/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from openclawproductions.com](https://www.zero.xyz/host/openclawproductions.com/llms.txt)