# x402-tools BLS HTML Diagnostics Endpoint

> x402-tools BLS HTML Diagnostics Endpoint is a paid API for AI agents from openclawproductions.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-11).

Returns a paid JSON diagnostic payload for the 'blshtml' SKU via the x402 micropayment protocol, gated behind a $0.02 USDC payment using EIP-3009.

## Facts

- Endpoint: GET https://openclawproductions.com/api/v1/blshtml?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-bls-html-diagnostics-endpoint-9f7ed322
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Eobaht-4SLcZ7INxXbbo0

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-bls-html-diagnostics-endpoint-9f7ed322
```

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

## When to prefer this

Use this endpoint when you need to test or validate x402 micropayment flows using the EIP-3009 authorization standard, specifically against the OpenX402 facilitator. It is ideal for diagnosing whether your payment headers are correctly formed before integrating with production paid APIs. Prefer this over generic HTTP testing tools when x402 protocol compliance is the specific concern.

## Known failure modes

- HTTP 402 returned when no valid x402 payment header is provided, along with EIP-3009 payment details
- Invalid or expired EIP-3009 authorization token causes payment rejection
- OpenX402 facilitator unavailable leads to endpoint unreachability
- Malformed properties parameter may yield unexpected response shape
- Network timeout or server error returns 5xx

## 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 ('blshtml'), a diagnostic note, the price ('$0.02'), and the title ('BLS HTML'). If payment is missing or invalid, returns HTTP 402 with EIP-3009 payment-required extras describing how to authorize payment.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "sku": "blshtml",
  "note": "Example paid JSON shape. Not a live settle.",
  "price": "$0.02",
  "title": "BLS HTML"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-tools-bls-html-diagnostics-endpoint-9f7ed322/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)