Mcptube
Karpathy's LLM Wiki idea applied to YouTube videos
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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, describes key frames via a vision model, and writes structured wiki pages. Knowledge compounds across videos rather than being re-discovered. FTS5 + a two-stage agent (narrow then reason) for retrieval.MCPTube works both as CLI (BYOK) and MCP server. I tested MCPTube with Claude Code, Claude Desktop, VS Code Copilot, Cursor, and others. Zero API key needed server-side.Coming soon: I am also building SaaS platform. This platform supports playlist ingestion, team wikis, etc. I like to share early access signup: https://0xchamin.github.io/mcptube/Happy to discuss architecture tradeoffs — FTS5 vs vectors, file-based wiki vs DB, scene-change vs fixed-interval sampling. Give it a try via `pip install mcptube`. Also, please do star the repo if you enjoy my contribution (https://github.com/0xchamin/mcptube)
HN · launched Apr 13, 2026 · 13 upvotes (top 33%) · 0 views
Niche: knowledge base and graph software · 107 launches, 1 in the last 7 days · Explore this niche →
Category and tags
- Media & entertainment
- Search & retrieval
- Prosumer
- AI-native
- Hobby / open-source project
Visit website ↗ Source listing ↗
More like this: all 107 launches in knowledge base and graph software →
Could you build this?
Yes An MCP server that fetches YouTube transcripts via existing libraries, embeds/indexes them, and exposes semantic search and Q&A tools can be vibe-coded in a weekend.
Discussion
3 comments analyzed.
Feature requests: summarize content video endpoint
Competitors
Other products that read as similar to this one : 89 launches clear the similarity bar, closest 8 shown.
Attention rank: #35 of 90 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 160 days after the earliest competitor.
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- MCP Server by XWiki · ph · 2026-10-30 · 175 upvotes · similarity 0.43
- LLM Wiki · hn · 2026-04-06 · 6 upvotes · similarity 0.41
- Mwe-MCP · hn · 2026-07-23 · 5 upvotes · similarity 0.40
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