# x402-tools Path Coupon Diagnostics

> x402-tools Path Coupon Diagnostics is a paid API for AI agents from openclawproductions.com, paid per call via x402, $0.2/call, status unknown (last checked 2026-10-12).

Returns a paid JSON diagnostic payload for the 'pathcoupon' SKU, demonstrating x402 HTTP payment gating with EIP-3009 authorization via OpenX402 facilitator.

## Facts

- Endpoint: GET https://openclawproductions.com/api/v1/pathcoupon?utm_source=zero.xyz
- Price: $0.2/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-tools-path-coupon-diagnostics-279e8db1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ttQeRaVq-06kEdljIwXmP

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-path-coupon-diagnostics-279e8db1
```

Example prompt: Can you call the x402 pathcoupon diagnostic endpoint to confirm my OpenX402 payment flow is working — I want to see the paid JSON response with the SKU, price, and title fields after settling $0.20 USDC?

## When to prefer this

Choose this endpoint when you need to test or diagnose x402 HTTP payment gating, specifically the EIP-3009 USDC authorization flow via the OpenX402 facilitator. It is a purpose-built diagnostic tool, not a production data source — ideal for developers building or debugging x402-enabled APIs who need a real paid endpoint to test against.

## Known failure modes

- HTTP 402 returned when no valid x402 payment header is included — response includes EIP-3009 payment details
- Invalid or expired EIP-3009 authorization results in payment rejection
- Requests not routed through OpenX402 facilitator may be rejected
- Malformed properties parameter may cause unexpected behavior
- Network timeouts if the endpoint is unavailable

## 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: sku ('pathcoupon'), note (diagnostic message confirming paid access), price ('$0.20'), and title ('Path Coupon'). If payment is not provided, returns HTTP 402 with EIP-3009 payment extras in the response headers/body.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "sku": "pathcoupon",
  "note": "Example paid JSON shape. Not a live settle.",
  "price": "$0.20",
  "title": "Path Coupon"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-tools-path-coupon-diagnostics-279e8db1/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)