Save once.Query anywhere.
Compile · Connect · Recall
Compile what you watch and read — YouTube, articles, PDFs, podcasts, meetings — into one knowledge base every AI can query over MCP. Tools change, models cycle; your index stays.
Free tier · MCP endpoint live · No credit card.
Query your corpus from the tools you already use
Three steps. One corpus. Every AI tool.
Save
Paste a YouTube URL, article, PDF, or podcast. BrainTube auto-extracts transcripts, takeaways, entities, and embeddings.
Compile
Captures become a structured knowledge base, auto-clustered into topic graphs. No folders. No tags.
Query anywhere
Use it from any AI tool over MCP, the web chat, or the API. One corpus, every interface.
Not another read-later app.
Universal MCP server
Connect BrainTube to any AI tool that speaks Model Context Protocol. AI-agnostic by design.
Auto-enrichment on every save
Summaries, key takeaways, entity extraction, semantic embeddings — all on ingest.
Auto-clustering knowledge graph
Living topic graphs on Postgres + pgvector, real-time Auto-Linker, PageRank retrieval.
Built to outlast every AI tool
Portable, exportable corpus via Obsidian sync + API. Your index stays.
Capture
One-click capture, fully enriched
YouTube, web, PDFs, podcasts, Notion, meeting audio, screenshots, social posts — saved and enriched in one step.
Graph
Knowledge graph that links itself
Entities extracted on ingest. The Auto-Linker connects related captures automatically as your corpus grows.
Recall
Ask, get answers that cite the exact moment
AI chat with timestamp citations back to the source. Every claim is traceable to the second.
Retain
Remember what you save
FSRS-5 spaced repetition resurfaces the right item at the right time — so saved actually means learned.
Own
Capture everywhere, own it forever
Chrome extension, PWA, Obsidian sync, API keys. Portable corpus, exportable any time.
Simple pricing.
One currency: credits — save items, run searches, ask your brain. Cancel anytime; your corpus exports with you.
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