How do I save my first item?

Paste any YouTube URL, article, or PDF into the capture bar. BrainTube extracts the transcript, generates a summary, and indexes everything within a minute.

How do I connect BrainTube to Claude or Cursor?

Open /connect in the app to get your MCP URL and API key, then paste it into Claude Desktop's config or Cursor's MCP settings. Your library becomes a tool the AI can call.

A Brain is a focused group of items you can chat with. Dashboard → Brains → New, pick items, give it a name. You can keep it private or share it publicly via a slug.

How does billing work?

Plans run monthly or annually with a 7-day trial. BrainTokens cover AI usage on top of your plan. Refunds within 14 days, no questions asked.

Where is my data stored?

EU-region infrastructure. You own your data, you can export it as JSON anytime, and account deletion purges backups within 30 days.

Brain API: Building Integrations — Help

How to build custom integrations using the Brain API for search, chat, and data export.

Build custom applications and workflows powered by your BrainTube knowledge.

Brain API Overview

The Brain API provides programmatic access to your Second Brains for listing brains, searching within a brain, and chatting with a brain.

Integration Ideas

Slack Bot — Query your brains from Slack
Telegram Bot — Personal knowledge assistant on mobile
Notion Integration — Auto-insert insights into Notion pages
Daily Digest Email — Summarize recent learning activity

Structured Exports

Export brain data as structured JSON including items with summaries, Knowledge Graph edges, entity lists, and topic clusters.

Analytics API

Access brain analytics: chat counts, content distribution, knowledge gaps, and popular topics.