# x402-tools SKU Delta 259 Diagnostics

> x402-tools SKU Delta 259 Diagnostics is a paid API for AI agents from openclawproductions.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-10).

Returns a paid diagnostic JSON payload for SKU 'skudelta259' to test x402 HTTP payment flow and eip3009 authorization mechanics

## Facts

- Endpoint: GET https://openclawproductions.com/api/v1/skudelta259?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-259-diagnostics-b0ec7c46
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ae6fjIb85ioJ4d-UR0ow0

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-259-diagnostics-b0ec7c46
```

Example prompt: Run the x402 paid diagnostic for SKU Delta 259 on OpenX402 — pay the $0.02 USDC fee and show me the response payload so I can confirm the eip3009 payment flow is working correctly.

## When to prefer this

Use this endpoint when you need to test or diagnose the x402 HTTP payment protocol, specifically the eip3009 payment authorization flow with OpenX402 as the facilitator. It is ideal for developers integrating USDC micropayments into APIs who want a live, low-cost ($0.02) reference endpoint to validate correct 402 gating, payment header construction, and successful paid-response delivery. Not suitable for production data retrieval — this is a diagnostic and testing tool only.

## Known failure modes

- HTTP 402 returned when no valid x402 payment header is included — response includes eip3009 payment requirement extras
- Payment rejected by OpenX402 facilitator if token authorization is malformed or expired
- Non-OpenX402 facilitators are not accepted, causing payment settlement failure
- Malformed 'properties' query parameter may result in unexpected response or error
- Network timeout if the endpoint is temporarily unavailable

## 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 ('skudelta259'), a descriptive title ('Sku Delta 259'), the price ('$0.02'), and a diagnostic note confirming the paid shape. Unpaid requests instead return HTTP 402 with eip3009-formatted payment extras in the response.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "sku": "skudelta259",
  "note": "Example paid JSON shape. Not a live settle.",
  "price": "$0.02",
  "title": "Sku Delta 259"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-tools-sku-delta-259-diagnostics-b0ec7c46/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)