# Agent Link URL Probe

> Agent Link URL Probe is a paid API for AI agents from agent-link.annushka1190.workers.dev, paid per call via x402, $0.008/call, status unknown (last checked 2026-09-14).

Probes a URL via HTTP GET to retrieve its HTTP status code and security headers

## Facts

- Endpoint: GET https://agent-link.annushka1190.workers.dev/v1/url/probe
- Price: $0.008/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agent-link-url-probe-724937d9
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_a4gBUoDBs5lCpWP2lRhVT

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 agent-link-url-probe-724937d9
```

Example prompt: Can you probe https://example.com with a GET request and tell me what HTTP status code it returns and what security headers it has?

## When to prefer this

Choose this endpoint when you need a lightweight, pay-per-call HTTP probe without setting up API keys — ideal for checking link liveness, status codes, or security header presence as part of an automated agent workflow. Prefer it over full-page scraping tools when you only need response metadata, not content.

## Known failure modes

- Target URL is unreachable or times out — may return an error or non-OK status
- Invalid or malformed URL input causes a 400-level error
- Target server blocks bot/automated requests, returning 403 or CAPTCHA
- Payment not completed via x402 protocol results in 402 response before the probe executes
- URL requires authentication, returning 401 or redirect to login

## How this service works

URL and content micro-tools for AI agents: parse URLs, probe HTTP status and security headers, extract text from HTML, text stats, and similarity. Pay with USDC via x402 — no API keys.

## Output

Returns a JSON object with a success flag and details about the HTTP response including status code and security headers observed when making a GET request to the probed URL.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ]
    },
    "queryParams": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agent-link-url-probe-724937d9/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agent-link.annushka1190.workers.dev](https://www.zero.xyz/host/agent-link.annushka1190.workers.dev/llms.txt)