# URL Links Extractor (GPT-5.5 x402 Gateway)

> URL Links Extractor (GPT-5.5 x402 Gateway) is a paid API for AI agents from gpt55.558686.xyz, paid per call via x402, $0.0001/call, status unknown (last checked 2026-09-15).

Fetches a URL and returns a structured list of all hyperlinks found on the page, paid per-call via x402 USDC on Base.

## Facts

- Endpoint: GET https://gpt55.558686.xyz/v1/tools/url-links
- Price: $0.0001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/url-links-extractor-gpt-5-5-x402-gateway-a0bb2114
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Y0MULIg_StK6Qa9V07Kzc

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 url-links-extractor-gpt-5-5-x402-gateway-a0bb2114
```

Example prompt: Can you fetch all the hyperlinks from https://example.com and give me a structured list of them? Limit the results to 50 links and time out after 5 seconds.

## When to prefer this

Choose this endpoint when you need a cheap, pay-per-call (no subscription) link extraction tool that returns structured hyperlinks from any public URL, especially when integrating with x402 USDC micropayment workflows on Base. Prefer over full-page scrapers when you only need link data, not full HTML or rendered content.

## Known failure modes

- URL is unreachable or returns non-200 status — ok: false with error detail
- URL exceeds max_bytes limit — truncated or error response
- Timeout exceeded (timeout_ms) — request aborted
- Too many redirects beyond max_redirects — redirect error
- Invalid or malformed URL input — validation error
- x402 payment failure — 402 response before content is served

## How this service works

Fetch a public HTTP(S) URL and return normalized links, anchor text, status, title, and redirect details. This deterministic endpoint does not call an upstream model. Pay up to $0.001 per request with x402 USDC on Base. Public paid calls are limited to 1500 input characters and 128 output tokens.

## Output

A JSON object with ok: true, tool: 'urlLinks', a summary string, and a structured list of hyperlinks found on the fetched page, along with a fetchedAt timestamp.

## 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": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "pathParams": {
     "type": "object",
     "additionalProperties": true
    },
    "queryParams": {
     "type": "object",
     "required": [
      "url"
     ],
     "properties": {
      "url": {
       "type": "string",
       "maxLength": 2048,
       "minLength": 1
      },
      "limit": {
       "type": "integer",
       "maximum": 200,
       "minimum": 1
      },
      "max_bytes": {
       "type": "integer",
       "maximum": 524288,
       "minimum": 4096
      },
      "timeout_ms": {
       "type": "integer",
       "maximum": 12000,
       "minimum": 1000
      },
      "max_redirects": {
       "type": "integer",
       "maximum": 3,
       "minimum": 0
      }
     },
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "ok": {
       "type": "boolean"
      },
      "tool": {
       "type": "string"
      },
      "fetchedAt": {
       "type": "string"
      }
     },
     "additionalProperties": true
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/url-links-extractor-gpt-5-5-x402-gateway-a0bb2114/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from gpt55.558686.xyz](https://www.zero.xyz/host/gpt55.558686.xyz/llms.txt)