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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.

Start Free — No Credit Card

Free tier · MCP endpoint live · No credit card.

Query your corpus from the tools you already use

ClaudeCursorAny MCP clientYouTubePDFsNotionPodcasts

How it works

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 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.

MCP

Connect it to your AI in 30 seconds.

BrainTube runs a live MCP server. Add it to Claude, ChatGPT, Cursor, or any MCP client and query your saved knowledge from inside the tool you already use.

Remote MCP server — paste into Claude or ChatGPT and sign in with your BrainTube account. OAuth, no keys to paste.

https://mcp.brain-tube.com/mcp

Cursor / any mcp.json client

{
  "mcpServers": {
    "braintube": {
      "url": "https://mcp.brain-tube.com/mcp"
    }
  }
}

Prefer API keys? Generate a bt_ key in the app and see the full docs at /developers.

Simple pricing.

One currency: BrainTokens — save items, run searches, ask your brain. Cancel anytime; your corpus exports with you.

Free

$0/mo

30 BrainTokens/mo

Save & search your first items. No card.

Choose Free

Starter

$9/mo

300 BrainTokens/mo

Import integrations, 1.5× earning, bulk import up to 50.

Choose Starter

Pro

POPULAR

$19/mo

1,000 BrainTokens/mo

Proactive AI Insights, 2× earning, bulk import up to 150.

PHUNT · 3 MO FREEChoose Pro

Product Hunt: 3 months of Pro free with code PHUNT — sign up free, then redeem it in Settings → Membership code.