Fitbit MCP server for AI agents

The MCP Fitbit Connector provides AI assistants with access to your Fitbit health data, enabling personalized insights, trend analysis, and automated tracking. It works with Claude Desktop and other MCP-compatible AI tools to analyze your exercise, sleep, weight, heart rate, and nutrition data.

Installation Options

Option 1: Install from NPM (Recommended)

Get Fitbit API credentials:
- Visit dev.fitbit.com
- Create an app with OAuth 2.0 Application Type: Personal
- Set Callback URL: http://localhost:3000/callback
- Note your Client ID and Client Secret
Install the package globally:
```
npm install -g mcp-fitbit
```

Add to your Claude Desktop config file:

{
  "mcpServers": {
    "fitbit": {
      "command": "mcp-fitbit",
      "args": [],
      "env": {
        "FITBIT_CLIENT_ID": "your_client_id_here",
        "FITBIT_CLIENT_SECRET": "your_client_secret_here"
      }
    }
  }
}

Config file location:

Windows: %AppData%\Claude\claude_desktop_config.json
macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
Linux: ~/.config/Claude/claude_desktop_config.json

Restart Claude Desktop and ask about your Fitbit data!

Option 2: Using Environment File

Get Fitbit API credentials (as described above)
Install the package globally:
```
npm install -g mcp-fitbit
```
Create .env file: When you run mcp-fitbit for the first time, it will tell you where to create the .env file. It will look something like:
```
C:\Users\YourName\AppData\Roaming\npm\node_modules\mcp-fitbit\.env
```

Add your credentials to the .env file:

FITBIT_CLIENT_ID=your_client_id_here
FITBIT_CLIENT_SECRET=your_client_secret_here

Run the server:
```
mcp-fitbit
```

Option 3: From Source (for Developers)

Get Fitbit API credentials (as described above)

Clone and setup:

git clone https://github.com/TheDigitalNinja/mcp-fitbit
cd mcp-fitbit
npm install

Create .env file:

FITBIT_CLIENT_ID=your_client_id_here
FITBIT_CLIENT_SECRET=your_client_secret_here

Build and run the server:
```
npm run build
npm run dev
```

Using the MCP Fitbit Connector

Authorization

On first use:

The server will open your browser to http://localhost:3000/auth
Log in to Fitbit and grant permissions
You'll be redirected to a success page
Your AI can now access your Fitbit data

Available Tools

You can use the following tools through your AI assistant:

Tool	Description	Parameters
`get_weight`	Weight data over time	`period`: `1d`, `7d`, `30d`, `3m`, `6m`, `1y`
`get_sleep_by_date_range`	Sleep logs for date range	`startDate`, `endDate` (YYYY-MM-DD)
`get_exercises`	Activity/exercise logs	`afterDate` (YYYY-MM-DD), `limit` (1-100)
`get_daily_activity_summary`	Daily activity summary	`date` (YYYY-MM-DD)
`get_activity_goals`	User's activity goals	`period`: `daily`, `weekly`
`get_activity_timeseries`	Activity time series data	`resourcePath`, `startDate`, `endDate`
`get_azm_timeseries`	Active Zone Minutes data	`startDate`, `endDate` (YYYY-MM-DD)
`get_heart_rate`	Heart rate for time period	`period`: `1d`, `7d`, `30d`, `1w`, `1m`, optional `date`
`get_heart_rate_by_date_range`	Heart rate for date range	`startDate`, `endDate` (YYYY-MM-DD)
`get_food_log`	Nutrition data for a day	`date` (YYYY-MM-DD or "today")
`get_nutrition`	Individual nutrient over time	`resource`, `period`, optional `date`
`get_nutrition_by_date_range`	Nutrient for date range	`resource`, `startDate`, `endDate`
`get_profile`	User profile information	None

Example Queries for Your AI

"Show me my sleep patterns this week"
"What's my average heart rate during workouts?"
"How many steps did I take last month?"
"What's my weight trend over the past 6 months?"
"Show me my nutrition breakdown for yesterday"

Testing with MCP Inspector

The MCP Inspector is available at http://localhost:5173 when running the server. You can use it to test all tools interactively and handle the OAuth flow before using with your AI assistant.

How to install this MCP server

For Claude Code

To add this MCP server to Claude Code, run this command in your terminal:

claude mcp add-json "fitbit" '{"command":"mcp-fitbit","args":[],"env":{"FITBIT_CLIENT_ID":"your_client_id_here","FITBIT_CLIENT_SECRET":"your_client_secret_here"}}'

See the official Claude Code MCP documentation for more details.

For Cursor

There are two ways to add an MCP server to Cursor. The most common way is to add the server globally in the ~/.cursor/mcp.json file so that it is available in all of your projects.

If you only need the server in a single project, you can add it to the project instead by creating or adding it to the .cursor/mcp.json file.

Adding an MCP server to Cursor globally

To add a global MCP server go to Cursor Settings > Tools & Integrations and click "New MCP Server".

When you click that button the ~/.cursor/mcp.json file will be opened and you can add your server like this:

{
    "mcpServers": {
        "fitbit": {
            "command": "mcp-fitbit",
            "args": [],
            "env": {
                "FITBIT_CLIENT_ID": "your_client_id_here",
                "FITBIT_CLIENT_SECRET": "your_client_secret_here"
            }
        }
    }
}

Adding an MCP server to a project

To add an MCP server to a project you can create a new .cursor/mcp.json file or add it to the existing one. This will look exactly the same as the global MCP server example above.

How to use the MCP server

Once the server is installed, you might need to head back to Settings > MCP and click the refresh button.

The Cursor agent will then be able to see the available tools the added MCP server has available and will call them when it needs to.

You can also explicitly ask the agent to use the tool by mentioning the tool name and describing what the function does.

For Claude Desktop

To add this MCP server to Claude Desktop:

1. Find your configuration file:

macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
Windows: %APPDATA%\Claude\claude_desktop_config.json
Linux: ~/.config/Claude/claude_desktop_config.json

2. Add this to your configuration file:

{
    "mcpServers": {
        "fitbit": {
            "command": "mcp-fitbit",
            "args": [],
            "env": {
                "FITBIT_CLIENT_ID": "your_client_id_here",
                "FITBIT_CLIENT_SECRET": "your_client_secret_here"
            }
        }
    }
}

3. Restart Claude Desktop for the changes to take effect