# OpenClaw x402 HDR Grade Diagnostics

> OpenClaw x402 HDR Grade Diagnostics is a paid API for AI agents from openclawproductions.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-11).

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

## Facts

- Endpoint: GET https://openclawproductions.com/api/v1/hdrgrade?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/openclaw-x402-hdr-grade-diagnostics-64740b99
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_FiqBN1puXi-Ugd5LsFa1n

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 openclaw-x402-hdr-grade-diagnostics-64740b99
```

Example prompt: Run the hdrgrade diagnostic on the OpenClaw x402 endpoint so I can see what a live paid 402 response with EIP-3009 extras looks like when the payment goes through.

## When to prefer this

Choose this endpoint when you need to test or demonstrate the x402 HTTP payment protocol with a real live endpoint, specifically to observe EIP-3009 payment-gating behavior, validate OpenX402 facilitator settlement, or inspect the paid vs unpaid response shapes for the hdrgrade diagnostic SKU. Not suitable for production data retrieval or non-x402 payment testing.

## Known failure modes

- HTTP 402 returned when no valid x402 payment header is present — includes EIP-3009 extras describing payment requirements
- Payment rejected if USDC amount is incorrect or authorization is malformed
- OpenX402 facilitator unavailable — endpoint may return 5xx or timeout
- Invalid or missing 'properties' parameter may result in malformed request
- Network timeout if facilitator settlement is delayed

## How this service works

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

## Output

Returns a JSON object containing the SKU name ('hdrgrade'), a human-readable title ('Header Grade'), the price ('$0.02'), and a diagnostic note confirming the paid response shape. Without a valid x402 payment, returns HTTP 402 with EIP-3009 payment requirement extras.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "sku": "hdrgrade",
  "note": "Example paid JSON shape. Not a live settle.",
  "price": "$0.02",
  "title": "Header Grade"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/openclaw-x402-hdr-grade-diagnostics-64740b99/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)