Yazio MCP Server

> [!IMPORTANT]

> This is not an official MCP server and Yazio does not provide an official API.

> This server uses an unofficial reverse-engineered API and may stop working at any time.

An MCP (Model Context Protocol) server that connects Claude/Cursor to your Yazio nutrition data. Track your diet, search food products, and manage your nutrition goals directly from your AI assistant.

Available on NPM: `npx yazio-mcp`

Claude Desktop Extension: ~~yazio-mcp.mcpb~~ — one-click install is broken upstream, see workaround.

✨ Features

• 🔐 Authentication - Connect with your Yazio account
• 📊 Nutrition Analysis - Get comprehensive diet data and insights
• 🍎 Food Tracking - Search, add, and manage food entries
• 🏃‍♂️ Fitness Data - Track exercises and water intake
• ⚖️ Weight Monitoring - View weight history and trends
• 🎯 Goal Management - Access and manage nutrition goals
• 🔍 Product Search - Search Yazio's extensive food database

🚀 Quick Start

Add the following JSON your MCP client configuration:

{
  "mcpServers": {
    "yazio": {
      "command": "npx",
      "args": ["-y", "yazio-mcp"],
      "env": {
        "YAZIO_USERNAME": "your_email@emai.com",
        "YAZIO_PASSWORD": "your_password"
      }
    }
  }
}

Claude Desktop (Extension)

> [!WARNING]

> One-click `.mcpb` install is broken by a Claude Desktop bug (mcpb#281). Workaround: download yazio-mcp.zip, extract it, and use Settings → Extensions → Advanced settings → Install Unpacked Extension. Or just use the `npx` config above.

Claude Desktop (Manual)

`~/Library/Application Support/Claude/claude_desktop_config.json`

Claude Code (CLI)

claude mcp add yazio -e YAZIO_USERNAME=your_email@email.com -e YAZIO_PASSWORD=your_password -- npx -y yazio-mcp

Verify with `claude mcp list`.

Cursor

There are a few ways to add the server:

• Settings UI (easiest) — `Settings → MCP → + Add new MCP server`, then fill in the command, args, and env
• Project config — add JSON to `.cursor/mcp.json` in your project root
• Global config — add JSON to `~/.cursor/mcp.json` (applies to all projects)

💡 Use Cases

📈 Analyze Your Nutrition Trends

> *"Get my nutrition data for the last week and analyze my eating patterns"*

Claude can retrieve your daily summaries, identify trends, and provide insights about your eating habits, macro distribution, and areas for improvement.

🔍 Search Food Products

> *"Search for 'chicken breast' in the Yazio database"*

Find detailed nutritional information for any food product, including calories, macros, vitamins, and minerals.

📝 Add Forgotten Meals

> *"Add 200g of grilled salmon for yesterday's dinner"*

Easily log meals you forgot to track in the Yazio app directly from Claude or Cursor.

🛠️ Available Tools

Test Connection

YAZIO_USERNAME='your_email' YAZIO_PASSWORD='your_password' npx yazio-mcp

⚠️ Important Disclaimers

• Unofficial API: This uses a reverse-engineered API that may break
• Credentials: Your Yazio credentials are only used for auth on Yazio servers
• Use at Your Own Risk: API changes could affect functionality

📋 Requirements

• Node.js 18+ (for npx)
• Valid Yazio account
• MCP-compatible client (Claude Desktop, Cursor, etc.)

Development

1. Download the repository

2. Point to local copy in your mcp config

3. Debugging:

YAZIO_USERNAME=X YAZIO_PASSWORD=X npx -y @modelcontextprotocol/inspector npx /yazio-mcp

📄 License

MIT License - see LICENSE file for details.