mcptube

Overview

mcptube is an MCP server that processes YouTube videos to build a compounding knowledge base. It extracts transcripts, detects scene changes with vision analysis, and creates wiki-style knowledge pages. The system stores knowledge as structured entities, topics and concepts that compound with each new video ingested. It supports both CLI usage and MCP integration with Claude, Copilot and other AI assistants.

Try asking AI

After installing, here are 5 things you can ask your AI assistant:

• add_video

  Add a YouTube video to the knowledge base

  Try:Add this YouTube video to my knowledge baseTry:Process this video for analysis: https://youtube.com/watch?v=xyz
• remove_video

  Remove a video from the knowledge base

  Try:Remove this video from my knowledge baseTry:I don't need this video analyzed anymore
• ask

  Ask a question about the knowledge base

  Try:What is RLHF?Try:Tell me about attention mechanismsTry:What videos discuss scaling laws?
• search

  Search the knowledge base for specific topics

  Try:Search for content about quantum computingTry:Find videos that mention transformersTry:Look up information about reinforcement learning
• list_videos

  List all videos in the knowledge base

  Try:Show me all videos I've analyzedTry:What videos are in my knowledge base?
• get_video_info

  Get detailed information about a specific video

  Try:Show me details about this videoTry:What information do you have about this YouTube video?
• browse

  Browse the knowledge base structure

  Try:Show me the wiki structureTry:What topics are in my knowledge base?Try:Browse the table of contents

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Installation

pip install mcptube

{
  "mcpServers": {
    "mcptube": {
      "command": "python",
      "args": ["-m", "mcptube.mcp_server"],
      "env": {}
    }
  }
}

FAQ

What file formats does mcptube store knowledge in?

Wiki pages are stored as JSON files on disk, with SQLite FTS5 for search indexing.

Does mcptube work with private YouTube videos?

No, it requires public videos as it uses youtube-transcript-api and yt-dlp for extraction.

On Hacker News

Recent discussion from the developer community.

• Show HN: Mcptube – Karpathy's LLM Wiki idea applied to YouTube videos▲ 13💬 3
  Story by 0xchamin · 2026-04-13
• Show HN: Mcptube – Turn YouTube videos into AI-queryable MCP servers▲ 2
  Story by belai · 2026-03-03

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