Mcptube – Karpathy's LLM Wiki idea applied to YouTube videos
I watch a lot of Stanford/Berkeley lectures and YouTube content on AI agents, MCP, and security. Got tired of scrubbing through hour-long videos to find one explanation. Built v1 of mcptube a few months ago. It performs transcript search and implements Q&A as an MCP server. It got traction (34 stars, my first open-source PR, some notable stargazers like CEO of Trail of Bits). But v1 re-searched raw chunks from scratch every query. So I rebuilt it. v2 (mcptube-vision) follows Karpathy's LLM Wiki pattern. At ingest time, it extracts transcripts, detects scene changes with ffmpeg,…
Mcptube – Karpathy's LLM Wiki idea applied to YouTube videos launched on April 13, 2026 with 13 votes, #1,135 of 21,248 launches that month and more than 90% of that year's launches.
In plain words
Mcptube is an open-source tool that lets users search and ask questions about YouTube video content, particularly Stanford and Berkeley lectures on AI topics. It extracts transcripts, detects scene changes, and generates structured summaries from video frames to create searchable knowledge bases. Users can query videos through a command-line interface or as an MCP server integrated with tools like Claude and VS Code, eliminating the need to scrub through hour-long videos to find specific explanations.
written from the facts on this page · September 2026
From the sources
Transform YouTube videos into a compounding knowledge base with transcripts, vision analysis, and agentic search. Works as an MCP server for Claude, Copilot & more. - 0xchamin/mcptube
In the maker’s words, at launch
I watch a lot of Stanford/Berkeley lectures and YouTube content on AI agents, MCP, and security. Got tired of scrubbing through hour-long videos to find one explanation. Built v1 of mcptube a few months ago. It performs transcript search and implements Q&A as an MCP server. It got traction (34 stars, my first…
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