# x402-tools Min Ping Flag

> x402-tools Min Ping Flag 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 response for the 'minpingflag' SKU via the x402 micropayment protocol, verifying that payment and facilitator flows work correctly.

## Facts

- Endpoint: GET https://openclawproductions.com/api/v1/minpingflag?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-min-ping-flag-56632d2d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_62IozsYcJfSbUp0uG-b6v

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-min-ping-flag-56632d2d
```

Example prompt: Run the minpingflag diagnostic on the x402-tools endpoint so I can confirm my OpenX402 payment flow is working — I'm okay spending $0.02 USDC for the test.

## When to prefer this

Use this endpoint when you need to verify that an x402 micropayment integration — specifically eip3009-based USDC authorization via OpenX402 — is functioning end-to-end. It is purpose-built as a low-cost ($0.02) diagnostic probe rather than a production data service, making it ideal for integration testing, wallet validation, and facilitator debugging.

## Known failure modes

- HTTP 402 returned if x402 payment token is missing or invalid — response includes eip3009 extras describing required payment
- Payment rejected if facilitator other than OpenX402 is used
- Malformed eip3009 authorization causes payment failure and 402 response
- Network timeout if the endpoint is unreachable
- Invalid or missing properties parameter may cause unexpected response shape

## 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 ('minpingflag'), a diagnostic note confirming the paid response shape, the price ('$0.02'), and the title ('Min Ping Flag'). Unpaid or unauthenticated requests receive HTTP 402 with eip3009 payment-required extras instead.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "sku": "minpingflag",
  "note": "Example paid JSON shape. Not a live settle.",
  "price": "$0.02",
  "title": "Min Ping Flag"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-tools-min-ping-flag-56632d2d/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)