# x402-tools Res Delta 526 Paid Diagnostic

> x402-tools Res Delta 526 Paid Diagnostic is a paid API for AI agents from openclawproductions.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-11).

Returns a paid diagnostic JSON payload for SKU 'resdelta526' via the x402 HTTP payment protocol, returning HTTP 402 with EIP-3009 payment details if unpaid.

## Facts

- Endpoint: GET https://openclawproductions.com/api/v1/resdelta526?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/x402-tools-res-delta-526-paid-diagnostic-644cf060
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Oo3EIyZiggWrPfVpwddPb

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-res-delta-526-paid-diagnostic-644cf060
```

Example prompt: Run the x402 paid diagnostic for SKU 'resdelta526' via OpenX402 and show me the returned JSON payload including the SKU, title, price, and note fields.

## When to prefer this

Use this endpoint when you need to test, probe, or validate x402 HTTP payment protocol flows specifically with the OpenX402 facilitator and EIP-3009 payment authorization. Ideal for developers building or debugging x402-gated APIs who need a live, low-cost ($0.02 USDC) reference endpoint to confirm payment challenge/response cycles work correctly.

## Known failure modes

- HTTP 402 returned when no valid x402 payment header is present — includes EIP-3009 payment challenge details
- Invalid or missing 'properties' parameter may result in malformed request
- OpenX402 facilitator unavailability causes payment settlement failure
- Network timeout or server error returns non-JSON response

## 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 with fields: sku ('resdelta526'), title ('Res Delta 526'), price ('$0.02'), and a note clarifying the diagnostic payload. If the request is unpaid, returns HTTP 402 with EIP-3009 payment challenge extras for the OpenX402 facilitator.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "sku": "resdelta526",
  "note": "Example paid JSON shape. Not a live settle.",
  "price": "$0.02",
  "title": "Res Delta 526"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-tools-res-delta-526-paid-diagnostic-644cf060/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)