# x402-tools Pending Gap 0 Diagnostic

> x402-tools Pending Gap 0 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 the 'pendinggap0' SKU, demonstrating x402 payment-gated API access via EIP-3009 on the OpenX402 facilitator.

## Facts

- Endpoint: GET https://openclawproductions.com/api/v1/pendinggap0?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-pending-gap-0-diagnostic-9d636b7e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_l5f6Wph6m6T4EWWMEQAnE

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-pending-gap-0-diagnostic-9d636b7e
```

Example prompt: Run the pendinggap0 x402 diagnostic on openclawproductions.com and show me the paid JSON response — I want to confirm my EIP-3009 payment flow is working with the OpenX402 facilitator.

## When to prefer this

Choose this endpoint when you need to test or validate an x402 payment-gated API integration using the OpenX402 facilitator and EIP-3009 USDC microtransactions. It is specifically useful for developers debugging payment flows, confirming facilitator connectivity, or verifying that HTTP 402 payment gating behaves as expected in their agent or application stack.

## Known failure modes

- HTTP 402 returned if no valid x402 payment header is provided — includes EIP-3009 payment instructions in response extras
- Payment not processed by OpenX402 facilitator if wrong facilitator is configured
- Invalid or malformed properties parameter may result in unexpected response
- USDC payment of exactly $0.02 required; incorrect amounts will be rejected

## 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 name ('pendinggap0'), a diagnostic note explaining this is an example paid JSON shape, the price ('$0.02'), and a human-readable title ('Pending Gap 0'). Unpaid requests receive HTTP 402 with EIP-3009 payment extras instead.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "sku": "pendinggap0",
  "note": "Example paid JSON shape. Not a live settle.",
  "price": "$0.02",
  "title": "Pending Gap 0"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-tools-pending-gap-0-diagnostic-9d636b7e/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)