MyFitnessPal MCP Server

An MCP server that lets AI assistants read and log your MyFitnessPal nutrition data. Track calories, macros, search foods, and add meals — all through natural conversation.

Tools

Tool	Description
get_diary	Get food diary entries for a specific date
get_nutrition_summary	Get calories and macros summary for a date
get_goals	Get your daily calorie and macro targets
quick_add_calories	Quick-add calories (and optionally macros) to a meal
search_food	Search the MFP food database
get_food_details	Get nutrition info and serving sizes for a food item
add_food	Log a food item to your diary

Setup

1. Get your session cookie

MyFitnessPal doesn't have a public API, so this server authenticates using your browser's session cookie.

1. Log into MyFitnessPal in your browser
2. Open DevTools (F12 or Cmd+Option+I)
3. Go to Application → Cookies → www.myfitnesspal.com
4. Copy the full cookie string (or use the helper script below)

Or use the helper script:

npm run export-cookies

2. Configure environment

cp env.example .env

Fill in your values:

MFP_SESSION_COOKIE=your_session_cookie_value_here
MFP_USERNAME=your_username

3. Build

npm install
npm run build

Usage

Claude Code

Add to ~/.claude/settings.json:

{
  "mcpServers": {
    "myfitnesspal": {
      "type": "stdio",
      "command": "node",
      "args": ["/path/to/myfitnesspal-mcp/dist/index.js"]
    }
  }
}

Cursor

Add to .cursor/mcp.json:

{
  "mcpServers": {
    "myfitnesspal": {
      "type": "stdio",
      "command": "node",
      "args": ["/path/to/myfitnesspal-mcp/dist/index.js"]
    }
  }
}

Claude Desktop

Add to ~/Library/Application Support/Claude/claude_desktop_config.json (macOS):

{
  "mcpServers": {
    "myfitnesspal": {
      "type": "stdio",
      "command": "node",
      "args": ["/path/to/myfitnesspal-mcp/dist/index.js"]
    }
  }
}

Replace /path/to/myfitnesspal-mcp with the actual path to this repo.

Remote Deployment (Cloudflare Workers)

The worker/ directory contains a Cloudflare Workers deployment for using this as a remote MCP server.

cd worker
npm install
npx wrangler login
npx wrangler deploy
npx wrangler secret put MFP_SESSION_COOKIE   # paste your cookie when prompted

Then connect from Claude Desktop:

{
  "mcpServers": {
    "myfitnesspal": {
      "command": "npx",
      "args": ["mcp-remote", "https://myfitnesspal-mcp.<your-subdomain>.workers.dev/mcp"]
    }
  }
}

Session Expiration

MFP session cookies expire roughly every 30 days. If you get auth errors, grab a fresh cookie from your browser and update your .env (or run npx wrangler secret put MFP_SESSION_COOKIE for the worker).

License

MIT

Disclaimer

Unofficial integration for personal use. Please respect MyFitnessPal's Terms of Service.