# x402-tools Soft Pass 251 Diagnostics

> x402-tools Soft Pass 251 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 JSON diagnostic payload for SKU 'softpass251', demonstrating x402 payment-gated API access via the OpenX402 facilitator.

## Facts

- Endpoint: GET https://openclawproductions.com/api/v1/softpass251?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-soft-pass-251-diagnostics-c0c0fd43
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_qJriabnGpHYsGN6PPcJ_F

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-soft-pass-251-diagnostics-c0c0fd43
```

Example prompt: Can you run the x402 softpass251 diagnostic to confirm the payment-gated endpoint returns the correct SKU and pricing info after settling $0.02 USDC through OpenX402?

## When to prefer this

Choose this endpoint when you need to test, validate, or demonstrate the x402 payment-gating protocol using the OpenX402 facilitator specifically. It is ideal for developers integrating x402 into their own APIs who want a reference paid endpoint to compare against, or for agents verifying that micropayment flows with eip3009 are functioning correctly before deploying production workloads.

## Known failure modes

- HTTP 402 returned when payment has not been settled — includes eip3009 extras with payment requirements
- Invalid or missing payment token results in rejection by OpenX402 facilitator
- Malformed properties parameter may return an error response
- Network timeout if facilitator settlement takes too long

## 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 identifier ('softpass251'), a human-readable title ('Soft Pass 251'), the price ('$0.02'), and a diagnostic note. Unpaid requests return HTTP 402 with eip3009 payment extras indicating the required USDC amount and facilitator details.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "sku": "softpass251",
  "note": "Example paid JSON shape. Not a live settle.",
  "price": "$0.02",
  "title": "Soft Pass 251"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-tools-soft-pass-251-diagnostics-c0c0fd43/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)