# x402-tools Looksunread401 Diagnostic Endpoint

> x402-tools Looksunread401 Diagnostic Endpoint is a paid API for AI agents from openclawproductions.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-10).

Returns a paid diagnostic JSON payload for the 'looksunread401' SKU, demonstrating x402 HTTP payment gating with EIP-3009 payment extras via OpenX402 facilitator.

## Facts

- Endpoint: GET https://openclawproductions.com/api/v1/looksunread401?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-tools-looksunread401-diagnostic-endpoint-9eb38e84
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_FdtEV9F1XBXmMOYFPCo23

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-looksunread401-diagnostic-endpoint-9eb38e84
```

Example prompt: Run the looksunread401 x402 diagnostic on openclawproductions.com and show me the paid JSON response to confirm the EIP-3009 payment flow is working correctly.

## When to prefer this

Choose this endpoint when you need to test or validate the x402 HTTP payment protocol flow end-to-end, specifically with EIP-3009 payment extras and the OpenX402 facilitator. It is ideal for developers debugging x402 integration, confirming micropayment settlement, or inspecting the 402 response structure before implementing a payment handler. Not suitable for production data retrieval or non-diagnostic use cases.

## Known failure modes

- HTTP 402 returned if payment header is missing or invalid — response includes EIP-3009 payment extras specifying how to pay
- Facilitator mismatch: only OpenX402 is accepted; other facilitators will be rejected
- Malformed properties parameter may yield unexpected responses
- Endpoint may be unavailable if the host is down, returning a standard 5xx error

## 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 ('looksunread401'), a diagnostic note clarifying this is an example paid shape, the price ('$0.02'), and the title ('Looks Unread 401'). Unpaid requests return HTTP 402 with EIP-3009 payment-required extras instead.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "sku": "looksunread401",
  "note": "Example paid JSON shape. Not a live settle.",
  "price": "$0.02",
  "title": "Looks Unread 401"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-tools-looksunread401-diagnostic-endpoint-9eb38e84/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)