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 it automatically.

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 14-day free trial on Starter and Pro and no card needed. Each plan includes monthly credits for AI actions. Refunds are handled case by case.

Where is my data stored?

Your library is stored in the EU, private to your account. AI providers process content to transcribe, summarise and embed it. You own your data: export your library as Markdown or JSON from Settings, or the whole corpus through MCP. Account deletion purges backups within 30 days.

MCP Connection Troubleshooting — Help

Fix BrainTube MCP connection problems: connection refused or timeouts, 401 token errors, and "no tools found" in Claude Desktop, Cursor and other clients.

Having trouble connecting to BrainTube's MCP server? Here are common issues and fixes.

"Connection Refused" or "Timeout"

Check your internet connection
Verify the endpoint URL from Settings → AI Integrations
Check if the server is up by accessing the endpoint in a browser

"Authentication Failed" or "401 Unauthorized"

Token expired — Go to Settings → AI Integrations and copy a fresh token
Wrong token format — Include "Bearer " before the token
Account issue — sign out and back in; MCP works on every plan, including Free

"No Tools Found"

Check your AI tool supports MCP (Claude Desktop 1.0+, Cursor, etc.)
Double-check your JSON configuration for syntax errors
Restart your AI tool after config changes

"Empty Results"

You need saved content before MCP queries return results
New items take 30-60 seconds to become searchable
Try broader search terms

Token Auto-Refresh

BrainTube auto-refreshes your access token every 45 minutes while the AI Integrations page is open. If authentication fails, open that page to get a fresh token.

Supported AI Tools

Tool	Status
Claude.ai	✅ Tested (OAuth)
Claude Desktop	Same endpoint, not yet tested by us
Cursor	Same endpoint, not yet tested by us
Gemini CLI	Same endpoint, not yet tested by us
ChatGPT	In testing, not available yet