How do I connect my notes to Claude and ChatGPT?

Give both assistants the same store over MCP. If your notes live in Notion, add Notion's official MCP server to each; for Obsidian, use a community MCP server. To combine notes with the videos, podcasts, PDFs and articles you save, keep them in one BrainTube library and add BrainTube as an MCP connector in both Claude and ChatGPT. Each assistant then searches the same notes and cites them, so you don't re-upload files to each app.

Can I connect Notion or Obsidian to ChatGPT and Claude?

Yes. Notion runs an official hosted MCP server that both can add. Obsidian vaults connect through community MCP servers; ChatGPT only reaches remote (HTTPS) servers, so a server running on your own computer won't connect to it. BrainTube can also sync Notion every 4 hours into one library both assistants read.

Do ChatGPT and Claude share memory?

No. Each keeps its own memory. A shared library connected over MCP is how you give both the same knowledge.

Can I export my library?

Your library belongs to you and is available on the web app; see the data pledge on brain-tube.com for details.

Which AI tools work with BrainTube?

Claude, ChatGPT, Cursor and other MCP clients.

Does it sync to my computer?

Your BrainTube account syncs with the web app at brain-tube.com, so what you save on iPhone is on your desktop too.

BrainTube is free with 30 credits a month plus credits you earn. Starter and Pro add more credits.

Guide · One memory, every AI

How to Connect Your Notes to Claude and ChatGPT (Notion, Obsidian and More)

To connect your notes to Claude and ChatGPT, give both assistants access to the same store over MCP: either your notes app's own MCP server (Notion has an official one, Obsidian has community servers) or one shared library such as BrainTube. Copy-pasting and per-app file uploads also work, but nothing carries over between chats or between the two apps.

By Ilian Raykov, founder of BrainTube

The short answer

Keep what you know in one BrainTube library.
Connect it to ChatGPT, Claude and Cursor over MCP.
Ask any of them; each searches the same library and cites sources.

Step by step

1. Build your library

Save videos, articles, PDFs and notes to BrainTube from the iPhone share sheet or brain-tube.com.

2. Connect Claude

Add BrainTube as a connector in Claude using the MCP setup guide.

3. Connect ChatGPT

Add BrainTube to ChatGPT the same way. Cursor and other MCP clients work too.

4. Switch freely

Ask either assistant about something you saved. Both search the same library, so nothing is lost when you switch.

By notes app: Notion, Obsidian, Apple Notes, Evernote

Where your notes are	Simplest way to reach Claude and ChatGPT	Trade-off
Notion	Notion's official hosted MCP server, added to each assistant	Covers what is in Notion only
Obsidian	A community MCP server for your vault	Community-maintained; local servers don't reach ChatGPT, which only connects to remote (HTTPS) servers
Apple Notes, Evernote or a mix of apps	Copy the text in, or upload exported files to a project in each app	Manual, and each app keeps its own copy
Notes plus videos, podcasts, PDFs and articles	One BrainTube library, with Notion synced every 4 hours, added to both assistants over MCP	One more app to save into

Other ways to give both assistants your notes

Copy and paste. Fine for a note or two. Nothing carries over to the next chat or to the other app.
Upload files to a project in each app. ChatGPT and Claude both let you add files to a project, but each keeps its own copy, so every update has to be uploaded twice.
Your notes app’s own MCP server. Notion offers one, and Obsidian has community servers. A good fit when all your notes already live in that one app.
A shared library (BrainTube). One place for notes plus the YouTube videos, podcasts, PDFs and articles you save, with Notion synced every 4 hours. Claude, ChatGPT, Cursor and other MCP clients read the same library.

Per-client steps for Claude.ai, Claude Desktop, Cursor and ChatGPT are in connect Claude, ChatGPT and Cursor to your knowledge base.

Get started

Get BrainTube on the App Store.
Your library is also on brain-tube.com, and Claude, ChatGPT and Cursor can read it over MCP: setup guide.
Related: the MCP setup guide.

Frequently asked

How do I connect my notes to Claude and ChatGPT?: Give both assistants the same store over MCP. If your notes live in Notion, add Notion's official MCP server to each; for Obsidian, use a community MCP server. To combine notes with the videos, podcasts, PDFs and articles you save, keep them in one BrainTube library and add BrainTube as an MCP connector in both Claude and ChatGPT. Each assistant then searches the same notes and cites them, so you don't re-upload files to each app.
Can I connect Notion or Obsidian to ChatGPT and Claude?: Yes. Notion runs an official hosted MCP server that both can add. Obsidian vaults connect through community MCP servers; ChatGPT only reaches remote (HTTPS) servers, so a server running on your own computer won't connect to it. BrainTube can also sync Notion every 4 hours into one library both assistants read.
Do ChatGPT and Claude share memory?: No. Each keeps its own memory. A shared library connected over MCP is how you give both the same knowledge.
Can I export my library?: Your library belongs to you and is available on the web app; see the data pledge on brain-tube.com for details.
Which AI tools work with BrainTube?: Claude, ChatGPT, Cursor and other MCP clients.
Does it sync to my computer?: Your BrainTube account syncs with the web app at brain-tube.com, so what you save on iPhone is on your desktop too.
Is it free?: BrainTube is free with 30 credits a month plus credits you earn. Starter and Pro add more credits.

Save once. Query anywhere.

Your YouTube library, in the AI tools you already use.

Start free