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YouTube Transcript Extractor

by highlight-ing 2 stars highlight-ing/highlight-youtube-mcp

Extracts transcripts from YouTube videos using various URL formats, enabling automated content analysis and summarization.

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YouTube Integration

The YouTube MCP server provides functionality to extract transcripts from YouTube videos.

Available Tools

get_youtube_transcript

Retrieves the transcript text from a YouTube video.

Parameters:

  • videoUrl: Full YouTube video URL (supports standard, shortened, and embed URLs)

Returns: Object containing:

  • content: Array with transcript text

URL Support

Handles multiple YouTube URL formats:

  • Standard: https://www.youtube.com/watch?v=VIDEO_ID
  • Shortened: https://youtu.be/VIDEO_ID
  • Embed: https://www.youtube.com/embed/VIDEO_ID

Error Handling

The server implements standard error handling:

  • Invalid URLs return ErrorCode.InvalidParams
  • Missing URL returns ErrorCode.InvalidParams
  • Failed transcript fetches return formatted error messages
  • Graceful shutdown on SIGINT

Technical Details

  • Built using the Highlight AI MCP SDK
  • Uses youtube-transcript library
  • Input validation via Zod
  • Runs as a stdio-based MCP server
  • Supports Node.js >=18.0.0

Limitations

  • Only works with videos that have captions enabled
  • Currently only returns English transcripts
  • Rate limits depend on YouTube's API restrictions

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