> ## Documentation Index
> Fetch the complete documentation index at: https://docs.metalinkapi.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Introduction

> A fast API for extracting metadata from any URL

MetaLink is a REST API that accepts a URL and returns structured metadata — Open Graph tags, Twitter Cards, favicons, titles, and descriptions — in a single JSON response.

## Key Features

* **Comprehensive metadata** — Extracts Open Graph, Twitter Card, favicons, author info, and more
* **Fast** — Typical response under 50ms for cached URLs, under 2 seconds for fresh fetches
* **Cached** — Results are cached for 24 hours, so repeated lookups are nearly instant
* **Simple** — One endpoint, one API key, one JSON response

## Base URL

All API requests use this base URL:

```
https://api.metalinkapi.com
```

## Quick Example

```bash theme={null}
curl "https://api.metalinkapi.com/v1/metadata?url=https://github.com" \
  -H "X-API-Key: YOUR_API_KEY"
```