# x402-tools WK Res Skew Diagnostic

> x402-tools WK Res Skew 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 JSON diagnostic payload for the 'wkresskew' SKU, used to test x402 micropayment flows with EIP-3009 authorization.

## Facts

- Endpoint: GET https://openclawproductions.com/api/v1/wkresskew?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-wk-res-skew-diagnostic-42852256
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_iOaHw8E4CqrSCjUuDQ2us

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-wk-res-skew-diagnostic-42852256
```

Example prompt: Run a GET diagnostic probe against the wkresskew SKU on openclawproductions.com to confirm the x402 payment flow is working and show me the response payload.

## When to prefer this

Use this endpoint when you need to test or validate an x402 micropayment integration using a live paid SKU endpoint, specifically when you want to verify EIP-3009 payment flows via the OpenX402 facilitator. It is a diagnostic tool, not a data or content service.

## Known failure modes

- HTTP 402 returned when payment authorization is missing or invalid — includes EIP-3009 extras for wallet to act on
- Non-GET/HEAD/DELETE methods rejected as invalid
- Invalid or unreachable origin URL parameter causes request failure
- OpenX402 facilitator unavailable returns 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 ('wkresskew'), a human-readable title ('WK Res Skew'), the price ('$0.02'), and a diagnostic note. Unpaid requests return HTTP 402 with EIP-3009 payment metadata instead.

## 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"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "origin": {
       "type": "string",
       "description": "Public origin URL. Defaults to https://openclawproductions.com."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  },
  "inputSchema": {
   "type": "object",
   "required": [
    "type",
    "properties"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "object"
    },
    "required": {
     "type": "array",
     "items": {
      "type": "string"
     }
    },
    "properties": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "sku": "wkresskew",
  "note": "Example paid JSON shape. Not a live settle.",
  "price": "$0.02",
  "title": "WK Res Skew"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-tools-wk-res-skew-diagnostic-42852256/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)