# x402-tools Proof Film Paid Diagnostic Endpoint

> x402-tools Proof Film Paid Diagnostic Endpoint is a paid API for AI agents from openclawproductions.com, paid per call via x402, $0.25/call, status unknown (last checked 2026-09-30).

Returns a paid JSON diagnostic payload (SKU: prooffilm) via the x402 HTTP payment protocol, gated at $0.25 USDC per call through OpenX402 facilitator.

## Facts

- Endpoint: GET https://openclawproductions.com/api/v1/prooffilm?utm_source=zero.xyz
- Price: $0.25/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-30
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-tools-proof-film-paid-diagnostic-endpoint-39589d9e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_mKEor67sKnHSgW2qXpowN

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-proof-film-paid-diagnostic-endpoint-39589d9e
```

Example prompt: Call the x402 proof-film diagnostic endpoint and pay the $0.25 USDC fee using my OpenX402 facilitator so I can verify my x402 payment client is working correctly and see the prooffilm SKU response.

## When to prefer this

Choose this endpoint when you need to validate a live x402 payment flow end-to-end against a known, stable paid SKU. It is ideal for testing EIP-3009 authorization, confirming OpenX402 facilitator compatibility, or debugging x402 client implementations. Not suitable for production data retrieval — this is a diagnostics and integration-testing tool.

## Known failure modes

- HTTP 402 returned when no valid payment header is provided — response includes eip3009 payment extras
- Payment rejected by OpenX402 facilitator if USDC authorization is invalid or insufficient
- Malformed EIP-3009 signature results in payment failure and 402 response
- Wrong facilitator used — only OpenX402 is accepted; other facilitators will not process payment
- Network timeout or service unavailability returns standard HTTP 5xx error

## 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 paid SKU identifier ('prooffilm'), a human-readable title ('Proof Film'), the price ('$0.25'), and a diagnostic note confirming the endpoint is live and payment was accepted. Unpaid requests receive HTTP 402 with EIP-3009 payment extras.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "sku": "prooffilm",
  "note": "Example paid JSON shape. Not a live settle.",
  "price": "$0.25",
  "title": "Proof Film"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-tools-proof-film-paid-diagnostic-endpoint-39589d9e/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)