Before you start
You will need two things:
- An AI Brain account, free to start, at app.brainformyai.com.
- An AI app that can add remote MCP connectors. Claude and Cowork (Anthropic), ChatGPT and Codex (OpenAI), Gemini (Google) and Grok (xAI) are the most commonly used apps.
The address every app asks for:
https://mcp.brainformyai.com/mcpConnect your AI
Pick your app to see how to connect it. It takes a couple of minutes.
Connect ChatGPT or Codex
- Install OpenAI PluginThis will redirect you to the AI Brain plugin on OpenAI.
Connect Claude or Cowork
- 1In Claude on the web or the desktop app, click your name in the bottom left, then Settings.Claude
Settings
Usage
Language
Get help
Log out
Your name
- 2Under Customize, choose Connectors.Claude · Settings
Settings
General
Account
Privacy
Customize
Skills
Connectors
Plugins
- 3Choose + Add, then Add custom connector.Claude · Settings · Connectors
Connectors
+ AddAdd custom connector - 4Name it AI Brain, paste the address as the MCP server URL, and choose Continue.Claude · Add custom connector
Add custom connector
Name
AI Brain
MCP server URL
https://mcp.brainformyai.com/mcp
CancelContinue - 5Sign in to AI Brain, pick the brain your AI apps use, and choose Allow.app.brainformyai.com
Allow Claude to use your brain?
Which brain may it use?
Work
AllowDon't allow
Connect Gemini
Set it up on a computer, at gemini.google.com. The setup menus aren't available on phones. Once set up, it works on your phone too.
Turn on Gemini's Memory first. Gemini usually needs it to connect to outside apps.
- 1At gemini.google.com on a computer, click the settings gear in the bottom left, then Personal Intelligence.Gemini
Account
Usage limits
Preferences
Personal Intelligence
Skills
Theme
- 2Make sure Memory is on. Gemini needs it for custom connectors. Then open Connected Apps.Gemini · Personal IntelligenceMemoryGemini learns from your past chatsConnected Apps›
- 3Choose + Custom.Gemini · Connected AppsConnected AppsFind and connect apps to get more done+ Custom
- 4Paste the address as the MCP Server URL and choose Next.Gemini · Connect to an MCP server
Connect to an MCP server
MCP Server URL
https://mcp.brainformyai.com/mcp
CancelNext - 5Sign in to AI Brain, pick the brain your AI apps use, and choose Allow.app.brainformyai.com
Allow Gemini to use your brain?
Which brain may it use?
Work
AllowDon't allow
gemini mcp add --transport http ai-brain https://mcp.brainformyai.com/mcp, then start Gemini and run /mcp auth ai-brain.Connect Grok
- 1In Grok on the web, the desktop app or the phone app, open the menu and choose Plugins (bottom left on a computer).Grok
Chat
Imagine
Library
Plugins
- 2Choose New Connector, then Custom.Grok · Connectors
Connectors
New Connector+ CustomAdd your own custom connector - 3Name it AI Brain, paste the address as the Server URL, and choose Add Connector.Grok · Custom Connector
Name
AI Brain
Server URL
https://mcp.brainformyai.com/mcp
CancelAdd Connector - 4Sign in to AI Brain, pick the brain your AI apps use, and choose Allow.app.brainformyai.com
Allow Grok to use your brain?
Which brain may it use?
Work
AllowDon't allow
Connect another app
You can connect any AI software that supports connections to outside sources. To do so, find how to add a custom or remote MCP connector in the app's settings, give it the following address, and sign in when asked.
https://mcp.brainformyai.com/mcpUsing your brain in a chat
At the beginning of a chat you'd like to use your AI Brain in, tell your AI something to the effect of:
Use my connected AI Brain for everything in this session.Once you connect your AI Brain to a chat, the chat should use it from that point on.
Tip: Your AI may ask permission the first time it uses your brain. Choose the broadest option, such as Always allow, so it doesn't ask every time.
Tip: In ChatGPT, Codex and Gemini, type @ and choose AI Brain to point your AI straight at your brain.
Tip: Turning off your AI's own memory makes AI Brain work better (except in Gemini, which needs its memory on to connect).
What your AI can do when connected
Knows your context
Starts from your instructions and finds the knowledge each task needs.
Works your way
Follows the skills you've set up, so results come out the way you like them.
Keeps your brain current
Adds what it learns about you and your work, with your OK.
Saves its work
Keeps what it makes for you, with a link to open it.
Stays organized
Files, names and describes things as it goes.
Never loses anything
Every change keeps the version before it, and trash can be restored.
Your AI cannot
- Reach any brain other than the one you chose for AI.
- Change files without your permission.
- Delete anything permanently.
- See earlier versions of files, or restore them.
- Share anything, change who can use what, or change its own access.
- Change your instructions, your settings, your plan or your billing.
- See your password or anything outside AI Brain.
Instructions you control
Each brain has its own instructions for how your AI works: how much to explain, when to ask first, how to write. Pick from ready-made settings or write your own, and every connected AI follows them.
Choosing what AI can use
An AI reaches only the brain you chose for AI. Within it, each file is either read only for AI or readable and editable, and you set this on the file's page. Every change an AI makes is recorded, and the version before it is kept.
Switching brains
All your AI apps use the same one brain. To switch, open the brain you want and choose Plug AI into this brain, or choose it under Manage AI connections in your account menu. Start a new chat afterwards, since a chat already open still remembers the old brain.
Disconnecting
Remove the connector in your AI app, or sign it out of AI Brain under Manage AI connections in your account menu, with Sign out next to the app. A connection left unused for 30 days signs out by itself.
Sharing
Open a file, folder or brain and choose Share. Enter someone's email and pick what they can do. We email them, and if they don't have an account yet, the email invites them to make one.
Viewer
Opens, reads and downloads.
Editor
Also changes what things say and adds new files. Can't rename, move, delete or share.
Co-owner (brains)
Also runs the brain: its instructions, name and colour, and who views or edits it.
Admin (brains)
A co-owner who can also add and remove co-owners and admins.
Free shares single files to view. Plus shares folders, and lets people edit. Pro shares whole brains and co-owning. To open something shared with you, Free opens files, Plus opens folders, and Pro opens brains. Anything your plan doesn't open yet waits under Shared with you, ready when you upgrade.
From Shared with you you can add something to one of your brains, so your AI can use it there, or make your own copy. Someone given a whole brain can also connect their AI to it, at their level. A viewer's AI only reads. You can also make a link that gives access to anyone with an account who opens it.
Restoring a co-owned brain to an earlier day is a vote. Everyone who runs it is emailed and can approve or veto. Any veto stops it, everyone approving runs it at once, and otherwise it runs after 12 hours if at least one other person approved.
A shared brain always has an admin. Anyone can leave one from Shared with you. If you're its last admin, you first pick a co-owner to take over. Everyone else carries on as before.
Privacy
AI Brain never receives your conversations, only the requests your AI makes to it. Nothing in your brain is used to train AI models. The privacy policy has the details.
Deleting your account
Open your account menu, choose Account, then Delete my account. Type your email and your password to confirm (just your email if you signed up with Google). If you pay for a plan, cancel it under Plan & billing first. You're signed out and your AI apps are disconnected straight away, and what you shared is gone for everyone else. Brains you share with other admins or co-owners carry on for them. Changed your mind? Sign in within 14 days and choose Restore my account. After that, it's deleted for good.
Troubleshooting
“Reconnect AI Brain” or a sign-in error.
Remove the connector and add it again with the same address.
The AI says a file is not there.
Check the file is in the brain you chose for AI.
A change is refused.
The AI is told why: the file is read only, it changed since the AI last read it, or your plan is full.
Still stuck? Write to hello@brainformyai.com.