# x402-tools SKU Delta 251 Diagnostic

> x402-tools SKU Delta 251 Diagnostic 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 SKU skudelta251 via the x402 HTTP payment protocol, requiring $0.02 USDC per call.

## Facts

- Endpoint: GET https://openclawproductions.com/api/v1/skudelta251?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-sku-delta-251-diagnostic-fae8149b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_c0vn_7X8b7X_nTjmHd5OK

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-sku-delta-251-diagnostic-fae8149b
```

Example prompt: Run the x402 diagnostic for SKU delta 251 on OpenX402 and show me the paid JSON response — I want to confirm the payment gating and eip3009 extras are working correctly.

## When to prefer this

Choose this endpoint when you specifically need to test or validate the x402 HTTP payment protocol flow, particularly with the OpenX402 facilitator and EIP-3009 payment authorization. It is purpose-built for diagnosing x402-gated API behavior rather than delivering production data.

## Known failure modes

- HTTP 402 returned if payment header is missing or invalid — response includes eip3009 extras describing payment requirements
- Invalid or malformed properties parameter may result in unexpected response
- OpenX402 facilitator unavailability may cause request failures
- USDC payment settlement failure prevents access to paid payload

## 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 ('skudelta251'), a human-readable title ('Sku Delta 251'), the price ('$0.02'), and a diagnostic note. Unpaid requests receive an HTTP 402 response with eip3009 payment extras instead of this payload.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "sku": "skudelta251",
  "note": "Example paid JSON shape. Not a live settle.",
  "price": "$0.02",
  "title": "Sku Delta 251"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-tools-sku-delta-251-diagnostic-fae8149b/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)