# x402 Mail Auth Diagnostics

> x402 Mail Auth Diagnostics is a paid API for AI agents from openclawproductions.com, paid per call via x402, $0.03/call, status unknown (last checked 2026-10-11).

Returns a paid diagnostic JSON payload for the 'mailauth' SKU, demonstrating x402 payment-gated API access with EIP-3009 payment flow via OpenX402 facilitator.

## Facts

- Endpoint: GET https://openclawproductions.com/api/v1/mailauth?utm_source=zero.xyz
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-mail-auth-diagnostics-2bf08070
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_2zCC7z0H9wzdnIeeTJRol

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-mail-auth-diagnostics-2bf08070
```

Example prompt: Can you call the x402 mailauth diagnostic endpoint and show me the paid JSON response it returns after settling the $0.03 USDC payment through OpenX402?

## When to prefer this

Use this endpoint when testing or diagnosing x402 protocol payment flows, specifically with the OpenX402 facilitator and EIP-3009 payment authorization. Prefer this for verifying that micropayment-gated API access is correctly configured, that USDC payment settlement works end-to-end, or for exploring what a paid x402 diagnostic SKU response looks like.

## Known failure modes

- HTTP 402 returned when no valid x402 payment token is provided, includes EIP-3009 payment requirement details
- Invalid or expired EIP-3009 authorization token causes payment rejection
- OpenX402 facilitator unavailable causes payment settlement failure
- Malformed request properties result in schema validation errors

## 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 name ('mailauth'), a diagnostic note explaining this is an example paid response shape, the price ($0.03), and a human-readable title ('Mail Auth'). If payment is not provided, returns HTTP 402 with EIP-3009 payment extras indicating the required payment details.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "sku": "mailauth",
  "note": "Example paid JSON shape. Not a live settle.",
  "price": "$0.03",
  "title": "Mail Auth"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-mail-auth-diagnostics-2bf08070/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)