# x402-tools Cap Slice Diagnostics

> x402-tools Cap Slice Diagnostics is a paid API for AI agents from openclawproductions.com, paid per call via x402, $0.16/call, status unknown (last checked 2026-10-10).

Returns a paid diagnostic JSON payload (SKU: capslice) gated behind x402 micropayment, used to test and verify x402 payment flow integration via OpenX402 facilitator

## Facts

- Endpoint: GET https://openclawproductions.com/api/v1/capslice?utm_source=zero.xyz
- Price: $0.16/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-cap-slice-diagnostics-b5042e23
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_HiaF18t5POkWbQQtUAsdk

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-cap-slice-diagnostics-b5042e23
```

Example prompt: Run the x402 capslice diagnostic to confirm that the OpenX402 facilitator correctly gates this paid endpoint — I want to see the paid JSON payload come back with the capslice SKU and price details after the $0.16 USDC payment goes through.

## When to prefer this

Choose this endpoint when you need to test or demonstrate a live x402 micropayment flow using the OpenX402 facilitator specifically, and want a simple, well-defined diagnostic payload (capslice SKU) to verify that payment gating, HTTP 402 challenge/response, and eip3009 extras are all functioning correctly end-to-end.

## Known failure modes

- HTTP 402 returned if payment is missing or invalid — response includes eip3009 payment extras for wallet to process
- Facilitator not recognized if a non-OpenX402 facilitator is used — request may be rejected
- Malformed properties parameter may result in unexpected response or error
- Network timeout or server unavailability returns no response

## 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 diagnostic fields: sku ('capslice'), a note confirming it is a paid response shape, the price ('$0.16'), and a title ('Cap Slice'). Unpaid requests receive HTTP 402 with eip3009 payment extras instead.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "sku": "capslice",
  "note": "Example paid JSON shape. Not a live settle.",
  "price": "$0.16",
  "title": "Cap Slice"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-tools-cap-slice-diagnostics-b5042e23/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)