Cobrain

npx add-mcp 'https://cobrain.space/mcp'

Step by step, without knowing how to code.

Every guide is one screenshot per step, with the fix inside the step that can go wrong. They carry no date because they do not expire: if a menu is renamed, we change the guide.

Connecting your AI

The same address for all of them. What changes is the program's menus. For ChatGPT there is a ready-made plugin to download, which works on every plan.

ChatGPT

in the browser

5 steps · download our plugin and upload it, on any plan.

Open the guide

Claude

app or browser

4 steps · done from the chat, without opening the settings.

Open the guide

Claude Code

terminal

5 steps · one line to paste, then you authorise in the browser.

Open the guide

Codex

terminal

3 steps · like Claude Code, with an automatic bridge.

Open the guide

Antigravity

Google · for Gemini

6 steps · ask the agent to configure it, then authorise.

Open the guide

Another program

if it speaks MCP, it works

4 steps · ask the AI to add Cobrain and follow what it tells you.

Generic instructions

Using the brain

You start with an empty brain. What you already have, your AI carries in.

Start from scratch

The first ten minutes: you connect an AI, ask it to remember something, and watch it appear. Where the notes live and what a unit's index card is.

Read

Bring in the notes you already have

Notion, Apple Notes, Google Docs, a folder of files, an old chat: you tell your AI where they are and it moves them across. With the message ready to paste.

Read

Sharing a branch

A folder or a single note to a colleague, read-only or read-write. What they see, what their AI sees, how you take it back.

Read

The Dream

Keep your memory tidy: at night Cobrain goes through the notes you worked on and finds duplicates, superseded decisions and broken links; your AI fixes them with you.

Read

Your AI's tools

The twenty-three commands a connected AI has at hand: what they do, what they touch, what they cannot do.

Read

Cannot find your AI?

If it speaks MCP, it works.

Cobrain is a standard remote MCP server with OAuth 2.1 authorisation: any program that can connect to an MCP server over HTTP connects to Cobrain too, by pasting https://cobrain.space/mcp. The tools page has the message to hand the program so it configures itself. If that does not work, write to us with the program's name: we will add the guide.

Free, no card needed

Start with a single note.

It is free and no card is needed. You sign in with a link sent by email, connect your AI and start building a memory that does not stay locked inside a chat.

Create your brain, freeGo to your brain A thousand notes, as many AIs as you want to connect.