@captapi/mcp

Official Captapi MCP server. Give Claude, Cursor, VS Code, and any MCP-compatible AI agent direct access to 62 social media data endpoints across YouTube, TikTok, Instagram, and Facebook — transcripts, summaries, comments, channel stats, search, bulk lists, and downloads.

One Captapi key works across every platform. The agent calls a tool, Captapi handles proxies, rate limits, retries, and auth, and returns clean JSON.

Quick start

You need a Captapi API key (capt_live_...). Get one at captapi.com/dashboard/api-keys.

Cursor

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (per-project):

{
  "mcpServers": {
    "captapi": {
      "command": "npx",
      "args": ["-y", "@captapi/mcp"],
      "env": {
        "CAPTAPI_API_KEY": "capt_live_xxxxxxxxxxxxxxxx"
      }
    }
  }
}

Claude Desktop

Add the same block to claude_desktop_config.json (Settings → Developer → Edit Config).

VS Code

Add to .vscode/mcp.json:

{
  "servers": {
    "captapi": {
      "command": "npx",
      "args": ["-y", "@captapi/mcp"],
      "env": {
        "CAPTAPI_API_KEY": "capt_live_xxxxxxxxxxxxxxxx"
      }
    }
  }
}

Configuration

| Env var | Required | Default | Description | | ------------------- | -------- | -------------------------- | ---------------------------------------- | | CAPTAPI_API_KEY | yes | — | Your capt_live_... / capt_test_... key. | | CAPTAPI_BASE_URL | no | https://api.captapi.com | Override the API base URL. |

Tools

Each endpoint is exposed as a tool named <platform>_<action>, e.g. youtube_transcript, tiktok_comments, instagram_channel_posts, facebook_profile_posts. Every tool declares its exact inputs (and the precise URL type expected — video, profile, playlist, sound, group, …):

• Most tools take a url. The description tells you which URL type.
• Search tools take q; list/comments tools also accept an optional limit.
• Comment-replies tools (*_comment_replies) additionally require comment_id.
• tiktok_trending_feed takes country (ISO-2, default US); tiktok_popular_hashtags takes query (default trending).
• Transcript / summarize tools accept an optional language.

Cached results (24h) are free. Failed or empty results are never charged.

License

MIT