Connect KBrain to your AI assistant
KBrain plugs into Claude and ChatGPT through MCP. You add a single connector - it automatically includes every brain you subscribe to, so you can query expert knowledge without leaving your chat.
https://www.kbrain.io/api/mcp- Claude via MCP
- ChatGPT via MCP
You only need one connector - it covers every brain you subscribe to.
Before you start
- A KBrain account. Sign in or create one.
- At least one brain you've subscribed to. Browse the marketplace.
- For ChatGPT and other MCP clients, your personal connector URL, which you'll find on your Connections page once signed in. Claude doesn't need it: KBrain is in the Claude directory.
Your connector URL
KBrain exposes a single MCP endpoint. You need it for ChatGPT and other MCP clients, or to add KBrain to Claude as a custom connector. The base URL is:
https://www.kbrain.io/api/mcpSign in and open your Connections page to copy the exact connector URL tied to your account. You only need one connector - it covers every brain you subscribe to.
Add the connector
Claude
Open in Claude directory- 1Open KBrain in the Claude directory.
- 2Click Connect.
- 3Sign in to KBrain and approve access.
- 4Start a new chat and turn on KBrain from the connectors menu.
If your Claude account is on a Claude Team or Enterprise plan, a Claude Owner first enables KBrain for the organization in Organization settings > Connectors. You then click Connect and sign in with your own KBrain account.
Not seeing the listing? Open Customize > Connectors, click Add custom connector, and paste your KBrain connector URL. On a Claude Team or Enterprise plan, ask a Claude Owner to add it.
ChatGPT
Open settings- 1Open Settings > Apps & Connectors > Advanced settings and enable Developer Mode.
- 2Go to Settings > Connectors and click Create.
- 3Add a name and description, then paste your KBrain connector URL as the connector URL.
- 4Use OAuth to connect KBrain securely when your client prompts for authentication.
- 5Create it, open a chat, click + > More, and select KBrain.
KBrain Enterprise: open endpoints
On KBrain Enterprise, a brain in open mode gets its own MCP URL, https://www.kbrain.io/api/mcp/open/your-brain, that works without a KBrain account. The Claude directory listing connects to your KBrain account, so add an open endpoint to Claude as a custom connector instead:
- Step 1Copy the open endpoint from the brain's page on KBrain.
- Step 2In Claude, open Customize > Connectors, click Add custom connector, paste the URL, and name it after the brain.
- Step 3On a Claude Team or Enterprise plan, a Claude Owner adds it once for everyone in Organization settings > Connectors (Add, then Custom). Members then click Connect next to it in Customize > Connectors.
Good to know
One connector, every brain.
You don't set up a connector per brain. The single KBrain connector automatically exposes all the brains you subscribe to.
Discovers what you’re missing.
When your connected brains don't cover a question, your assistant can search the marketplace for a relevant expert brain and share a one-click subscribe link - so you always know when a better source exists.
Secure by OAuth.
When you connect from the Claude directory, or your assistant prompts for authentication, KBrain uses OAuth so your credentials are never pasted into the chat.
Read-only.
KBrain's tools only retrieve knowledge - they never modify your account or data.
Current scope.
MCP workflows are tested with Claude and ChatGPT. Other MCP-compatible clients may work but are not officially supported yet.
Example queries
Once the connector is on, just ask your assistant naturally - it will reach into the brains you subscribe to and answer with cited, expert knowledge.
- “Using KBrain, what do the latest UNESCO figures say about youth literacy in Sub-Saharan Africa?”
- “Search my connected brains for the out-of-school children rate and cite the source.”
- “Ask KBrain to summarize what my subscribed brain covers on this topic.”
- “Ask KBrain to discover an expert brain for this topic and share the subscribe link.”
Ready to plug in expert knowledge?
Find a brain, subscribe, and connect it in minutes.