> ## Documentation Index
> Fetch the complete documentation index at: https://developers.thinkout.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Connect

> Connect your ThinkOut account to Claude, ChatGPT, Claude Code, Codex, or Gemini.

You sign in with your ThinkOut account, the same one you use in the app. There
are no API keys to copy, and the assistant only sees the workspaces you gave it
access to.

## Claude

<Steps>
  <Step title="Open connector settings">
    In Claude, go to **Customize** → **Connectors** → **Add custom connector**.
  </Step>

  <Step title="Add the server">
    Name it `ThinkOut` and enter the address `https://mcp.thinkout.io`
  </Step>

  <Step title="Sign in">
    Turn on sign-in, save, and authorise with your ThinkOut account.
  </Step>
</Steps>

<Frame>
  <img src="https://mintcdn.com/thinkoutio/hIksl1c44tQA3UoO/images/mcp/connect-claude.svg?fit=max&auto=format&n=hIksl1c44tQA3UoO&q=85&s=805341cfa7d1abc8f97c0f44766accec" alt="Adding the ThinkOut custom connector in Claude settings" width="1200" height="600" data-path="images/mcp/connect-claude.svg" />
</Frame>

## Claude Code

Open the terminal and insert:

```bash theme={"system"}
claude mcp add --transport http thinkout https://mcp.thinkout.io
```

Then run `/mcp` and complete the sign-in in your browser.

## Codex

Open the terminal and insert:

```bash theme={"system"}
codex mcp add thinkout --url https://mcp.thinkout.io
codex mcp login thinkout
```

## Gemini CLI

Add the server to `~/.gemini/settings.json`:

```json theme={"system"}
{
  "mcpServers": {
    "thinkout": {
      "httpUrl": "https://mcp.thinkout.io"
    }
  }
}
```

Then run `/mcp auth thinkout`.

<Note>
  On Gemini Enterprise, the administrator has to request client credentials from
  the ThinkOut team first.
</Note>

## ChatGPT

<Steps>
  <Step title="Turn on developer mode">
    In **Settings**, enable developer mode.
  </Step>

  <Step title="Create the connector">
    Add a connector pointing to `https://mcp.thinkout.io`
  </Step>

  <Step title="Sign in">
    Complete the ThinkOut authentication when prompted.
  </Step>
</Steps>

<Frame>
  <img src="https://mintcdn.com/thinkoutio/hIksl1c44tQA3UoO/images/mcp/connect-chatgpt.svg?fit=max&auto=format&n=hIksl1c44tQA3UoO&q=85&s=4d33e402d212c87264975259fb6a02a8" alt="Adding the ThinkOut connector in ChatGPT developer mode" width="1200" height="600" data-path="images/mcp/connect-chatgpt.svg" />
</Frame>

## Other clients

Any MCP-compatible client that supports Streamable HTTP with OAuth can connect
at the address `https://mcp.thinkout.io`