To use MindMap AI in Notion, open your workspace Settings, go to Connections, choose Custom MCP, paste https://mindmapai.app/mcp as the server URL, name it MindMap AI, and click Connect. Sign in to MindMap AI, approve the permissions, and it appears under your Installed connections. From then on, the Notion Agent can build, expand, and export mind maps for you. Seven steps, one URL, about two minutes, and no code to write.
Notion is where the notes live. Meeting notes, project docs, research, task lists. It is less good at showing you the shape of all that text. The MindMap AI connector fixes that: ask the Notion Agent for a map, and it builds a real, editable mind map in your MindMap AI account and hands you the link. This guide covers what the connector does, the seven steps to set it up, the prompts worth trying first, and what to do if something does not work.
What the MindMap AI connector does in Notion
MindMap AI plugs into Notion as a custom MCP server. MCP is the open standard AI tools use to talk to each other. Once connected, the Notion Agent gets a set of mind mapping tools it can call on your behalf, using your own MindMap AI account. You can ask for a map from a topic, a page of notes, a project brief, or anything the agent can see in your workspace, then keep refining it in plain language.
- Create – Turn a topic, a Notion page, meeting notes, or a brief into a structured map.
- Expand – Grow a branch, add relationship arrows to build a concept map, or group ideas with summary brackets.
- Restyle – Switch between mind map, logic chart, and org chart layouts, and apply themes.
- Export – Take the finished map out as a file when you are done.
- Keep – Every map is saved to your MindMap AI account, where you can carry on editing it on the canvas with full styling control.
Connecting is free. Map creation and AI edits use credits from your MindMap AI account (see plans and monthly credits); viewing and exporting your maps never uses credits, and manual editing on the canvas is always free.
One thing to know up front: MindMap AI is not listed in Notion's connections directory. You add it through Notion's Custom MCP option by pasting a URL. That is why Notion shows a "hasn't reviewed this server" notice during setup. It appears for every custom server and is expected.
Before you start
Three things, all quick:
- A Notion workspace with Notion AI – do the setup on notion.so in a desktop browser. Custom MCP connections are a Notion AI feature, so check that your Notion plan includes it.
- A MindMap AI account – you can sign up free during the connect flow with Google, Apple, or email, so there is nothing to prepare in advance.
- Pop-ups allowed – the MindMap AI sign-in opens in a new window. If your browser blocks it, clicking Connect looks like nothing happened.
How to connect MindMap AI to Notion
Seven steps, start to finish. You only do this once. After that the connection is available to the Notion Agent in every chat.
The one thing you will need to copy is the MCP server URL: https://mindmapai.app/mcp
Step 1: Open workspace Settings
Click your workspace name in the top left of Notion, then click Settings.
Step 2: Go to Connections
In the settings sidebar, scroll to the Features group and click Connections. It sits between Notion AI and Notion MCP.
Step 3: Pick Custom MCP
On the Discover tab, filter by MCP and choose Custom MCP. It is usually the first tile.
Step 4: Paste the server URL
In the MCP server URL field, paste https://mindmapai.app/mcp. Notion checks the URL and shows a green tick when it can reach the server.
Step 5: Name it, then Connect
Type MindMap AI in the Name field. Leave Authentication on OAuth. You will see a notice that Notion hasn't reviewed this server. That appears for every custom server. Click Connect. The MindMap AI sign-in opens in a new window, so allow pop-ups if your browser asks.
Step 6: Allow access
Sign in to MindMap AI, or create a free account, then approve the permissions so Notion can create and edit mind maps, read the maps it creates or you share, export maps to files, and see your name, email, and plan. Only you, signed in to your account, can approve the connection.
Step 7: You're installed
MindMap AI now shows under the Installed tab in Connections. It appears with a plain "M" tile rather than the MindMap AI logo. That is how Notion renders custom servers, so it is normal.
Prompts to try in your next Notion chat
Open a Notion AI chat and ask. Naming the tool helps the agent pick MindMap AI instead of answering in text. Start with the first one, then keep going in the same chat. Each follow-up edits the same map rather than starting over.
- Create – "Turn my meeting notes into a mind map using MindMap AI."
- Brief – "Map a project brief on Microplastic Remediation using MindMap AI."
- Expand – "Expand the Risks branch into owners, likelihood, and mitigation."
- Connect – "Add arrows to my map to show how the ideas depend on each other."
- Recall – "Show me my recent MindMap AI maps."
- Export – "Export the map so I can drop it into Friday's deck."
The agent replies with a short summary of the map and a link that opens it on the MindMap AI canvas. From there you can keep editing by hand, restyle it, share it, or export it.
Where this earns its keep:
Meeting notes that need turning into owners and next steps, project docs that have outgrown a bullet list, research pages you want to see as a structure instead of a wall of text, and planning sessions where the relationships matter more than the order. Notion holds the notes. MindMap AI turns them into something you can see.
If something does not work
| What you see | What to do |
|---|---|
| You clicked Connect and nothing happened | Your browser blocked the pop-up. The MindMap AI sign-in opens in a new window. Allow pop-ups for notion.so, then click Connect again. |
| Notion says it hasn't reviewed this server | That notice appears for every custom MCP server, not just MindMap AI. It is expected. Click Connect to continue. |
| The installed connection shows an "M" tile, not the MindMap AI logo | That is how Notion renders custom servers. The name next to it should read MindMap AI. You are connected. |
| Notion Agent answers in text, no map | Say the tool name. Add "using MindMap AI" to your request, or start a new chat and ask again. |
| Map creation or edits stop working | You may be out of credits. Viewing and exporting existing maps and manual canvas edits stay free, so your work is not locked away. |
| The agent edits the wrong map | Name it. Say which map or which branch you mean, or start a fresh chat for a new topic. |
Still stuck? The MCP connector help article covers connection issues in more depth. The same server also works in Claude and ChatGPT, so if you use more than one assistant, one MindMap AI account covers all three.
Final thoughts
Seven clicks and one URL is a low price for turning every Notion page into something you can see. Connect it once, then ask the Notion Agent for a map whenever a doc starts sprawling. Your first maps are covered by the free monthly credits.
FAQ
No. Notion's Custom MCP option only asks for a server URL and a name. Paste https://mindmapai.app/mcp, type MindMap AI, keep Authentication on OAuth, and click Connect. Notion then opens the MindMap AI sign-in, you approve the permissions, and the connection is done. There is no API key, no config file, and nothing to install. The whole flow runs inside Notion's settings in a desktop browser and takes about two minutes.
Notion's directory lists connections that Notion has built or reviewed. MindMap AI connects through Notion's Custom MCP option instead, which lets you add any MCP server by URL. That is why you paste https://mindmapai.app/mcp rather than searching for it, and why Notion shows a "Notion hasn't reviewed this server" notice. The notice appears for every custom server. It is not a warning about MindMap AI specifically.
Yes, connecting is free. Map creation and AI edits use credits from your MindMap AI account, the same balance you use on the web app. Free accounts get 50 AI credits each month, and paid plans include more. Viewing and exporting your maps never uses credits, and manual editing on the canvas is always free, so a finished map is never locked away. Check Notion's own plan page to confirm custom MCP connections are available on your Notion plan.
The approval screen lists them: create and edit mind maps, read the maps it creates or you share, export maps to files, and see your name, email, and plan. Notion cannot see maps you have not shared with it, and only you, signed in to your account, can approve the connection. You can remove the connection at any time from Notion's Connections settings under the Installed tab.
Every map is saved to your MindMap AI account, not inside Notion. The Notion Agent replies with a link to the map. Open it on the canvas to keep editing with full styling control, share it, or export it in the formats your plan includes. Nothing disappears when the Notion conversation ends, and you can ask for your recent maps in a later chat to pick one up again.
