# AgentHub x402 Public Endpoint Inspector

> AgentHub x402 Public Endpoint Inspector is a paid API for AI agents from 3dprintedcat.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-15).

Inspects and validates a public URL endpoint, returning host, HTTP status, and availability metadata for AI agent use.

## Facts

- Endpoint: POST https://3dprintedcat.com/agenthub-link.php
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agenthub-x402-public-endpoint-inspector-8e0e26ca
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_xjOESy61RqS25FWaD2mYU

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 agenthub-x402-public-endpoint-inspector-8e0e26ca -d '<json body>'
```

Example prompt: Can you inspect the public endpoint at example.com and tell me if it's responding — I want to know the host, whether it's reachable, and what HTTP status code it returns?

## When to prefer this

Use this endpoint when an AI agent needs a quick, low-cost ($0.003 USDC) check on whether a public URL or host is live and what HTTP status it returns, especially within an x402 micropayment workflow where lightweight utility calls are expected.

## Known failure modes

- Host unreachable or DNS failure — ok: false with error details
- Invalid or malformed URL input — validation error returned
- Target endpoint returns non-2xx status — status reflected in response with ok: false
- Payment not processed — x402 payment required error before execution
- Timeout if remote host is slow to respond

## How this service works

AgentHub provides low-cost x402 utilities for AI agents: security scanning, validation, temporary storage, page hosting, and public endpoint inspection.

## Output

A JSON object with a boolean 'ok' field indicating success, the resolved 'host' string, and the HTTP 'status' code returned by the inspected endpoint.

## Example request

```json
{
 "url": "https://example.com"
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "host": "example.com",
  "status": 200
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agenthub-x402-public-endpoint-inspector-8e0e26ca/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from 3dprintedcat.com](https://www.zero.xyz/host/3dprintedcat.com/llms.txt)