Calorie Tracker MCP Server

MCP server for tracking daily calorie intake with accurate BMR/TDEE calculations. Built on Cloudflare Workers with D1 database.

Features

• Food Tracking: Add, update, delete food entries with macros
• Profile Management: BMR/TDEE calculations using Harris-Benedict equation
• Historical Data: Track weight, body composition over time
• Secure: API key authentication with role-based access

Quick Setup

pnpm install
npx wrangler d1 create calorie-tracker
npx wrangler d1 migrations apply calorie-tracker
pnpm run dev

Update wrangler.jsonc with your database ID.

Claude Desktop Config

{
  "mcpServers": {
    "calorie-tracker": {
      "command": "npx", 
      "args": ["mcp-remote", "http://localhost:8787/sse"],
      "env": {
        "BEARER_TOKEN": "YOUR_ADMIN_API_KEY"
      }
    }
  }
}

Tools

Food Tracking:

• list_entries - List food entries with pagination
• add_entry - Add food entry with macros
• update_entry - Update existing entry
• delete_entry - Delete entry

Profile Management:

• get_profile - Get profile with BMR/TDEE calculations
• update_profile - Update profile data (height, weight, activity level)
• get_profile_history - Historical tracking data

Admin:

• register_user - Register new user
• revoke_user - Revoke user access

BMR/TDEE Calculations

Uses Harris-Benedict equation (1984 revision):

Male: BMR = 88.362 + (13.397 × weight) + (4.799 × height) - (5.677 × age)
Female: BMR = 447.593 + (9.247 × weight) + (3.098 × height) - (4.330 × age)

TDEE: BMR × Activity Multiplier (1.2 - 1.9)

Development

pnpm test              # Run tests
pnpm run deploy        # Deploy to production
pnpm run type-check    # TypeScript validation

Tech Stack

• Runtime: Cloudflare Workers
• Database: D1 (SQLite)
• Language: TypeScript
• Validation: Zod
• Testing: Vitest