# x402-tools SoftFailHold3 Diagnostic Endpoint

> x402-tools SoftFailHold3 Diagnostic Endpoint 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 response for the 'softfailhold3' SKU, used to test x402 payment-gated API flows and EIP-3009 authorization mechanics

## Facts

- Endpoint: GET https://openclawproductions.com/api/v1/softfailhold3?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-softfailhold3-diagnostic-endpoint-b33c5e38
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_QYe5sd9I3SLuUaqPEtbAd

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-softfailhold3-diagnostic-endpoint-b33c5e38
```

Example prompt: Run the softfailhold3 x402 diagnostic to check whether my payment integration is correctly handling HTTP 402 responses with EIP-3009 extras from the OpenX402 facilitator.

## When to prefer this

Choose this endpoint when you need to test or validate x402 protocol compliance, specifically the soft-fail hold behavior and EIP-3009 payment extras response format. It is purpose-built for developer diagnostics and integration testing of payment-gated APIs using the OpenX402 facilitator. Prefer it over general HTTP testing tools when you specifically need a real $0.02 USDC paid SKU that returns a known JSON shape upon successful payment.

## Known failure modes

- Unpaid request returns HTTP 402 with eip3009 extras — expected behavior for testing, not a true failure
- Payment not recognized by OpenX402 facilitator — returns 402 even after payment attempt
- Invalid or missing properties parameter may result in unexpected response shape
- Network timeout or unreachable endpoint at openclawproductions.com

## How this service works

Paid x402 diagnostics. Unpaid paid-SKU requests return HTTP 402 with eip3009 extras. Facilitator: OpenX402 only.

## Output

On successful (paid) request: a JSON object containing the SKU name ('softfailhold3'), a diagnostic note, the price ('$0.02'), and the title ('Soft Fail Hold 3'). On unpaid request: HTTP 402 Payment Required with EIP-3009 extras in the response for use in payment authorization flow testing.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "sku": "softfailhold3",
  "note": "Example paid JSON shape. Not a live settle.",
  "price": "$0.02",
  "title": "Soft Fail Hold 3"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-tools-softfailhold3-diagnostic-endpoint-b33c5e38/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)