yutu is a fully functional MCP server and CLI for YouTube to automate your YouTube workflows. It can manipulate almost all YouTube resources, like videos, playlists, channels, comments, captions, and more. As an MCP server, yutu can be used in MCP clients like Claude Desktop, VS Code, or Cursor, which allows you to interact with YouTube resources in a chat-like interface. Before using yutu as an MCP server, you need a valid client_secret.json and youtube.token.json, and you can configure default credential/token paths or override them with environment variables. The README provides a configuration snippet showing how to expose yutu to MCP clients (type: stdio, command: "yutu", args: ["mcp"], env: {"YUTU_CREDENTIAL": "/absolute/path/to/client_secret.json", "YUTU_CACHE_TOKEN": "/absolute/path/to/youtube.token.json"}). The server offers an extensive CLI with commands for activities, authentication, captions, channels, comments, playlists, videos, and more. It relies on Google Cloud OAuth for YouTube API access (YouTube Data API v3, and optionally YouTube Analytics and YouTube Reporting). Installation and distribution options include Docker, Go, Linux, macOS, Windows, and Homebrew, along with an attestation verification workflow for provenance.