Renpho MCP Server

A Model Context Protocol (MCP) server that provides access to body composition data from Renpho smart scales. Query your weight, body fat, muscle mass, and other health metrics directly from Claude, Cursor, or any MCP-compatible client.

Features

• Body Composition Data: Weight, BMI, body fat %, muscle mass, water %, bone mass, visceral fat, metabolic age, BMR, and more
• Weight Trends: Track changes over customizable time periods (7-365 days)
• Health Classifications: Automatic BMI, body fat, and visceral fat category assessments
• Measurement History: Access historical data with filtering options
• Secure: Credentials stored as environment variables, never logged

Requirements

• Node.js 18+
• A Renpho Health account with connected smart scale
• Important: This works with the Renpho Health app (blue icon), not the legacy Renpho app

Installation

git clone https://github.com/StartupBros/renpho-mcp-server.git
cd renpho-mcp-server
npm install
npm run build

Configuration

Create a .env file (or set environment variables):

RENPHO_EMAIL=your-email@example.com
RENPHO_PASSWORD=your-password

Claude Code

Add to your MCP settings (~/.claude/settings.json or project .claude/settings.json):

{
  "mcpServers": {
    "renpho": {
      "command": "node",
      "args": ["/path/to/renpho-mcp-server/dist/index.js"],
      "env": {
        "RENPHO_EMAIL": "your-email@example.com",
        "RENPHO_PASSWORD": "your-password"
      }
    }
  }
}

Claude Desktop

Add to claude_desktop_config.json:

{
  "mcpServers": {
    "renpho": {
      "command": "node",
      "args": ["/path/to/renpho-mcp-server/dist/index.js"],
      "env": {
        "RENPHO_EMAIL": "your-email@example.com",
        "RENPHO_PASSWORD": "your-password"
      }
    }
  }
}

Available Tools

Tool	Description
get_latest_measurement	Most recent body composition reading
get_body_composition	Detailed composition with health classifications
get_weight_trend	Weight change analysis over N days
get_measurements	Historical measurements with date filtering
get_current_user	User profile information
health_check	Verify API connection status

Example Usage

Once configured, ask Claude:

• "What's my current weight and body composition?"
• "Show my weight trend over the last 90 days"
• "How has my body fat percentage changed this year?"
• "Get my last 10 measurements"

Technical Notes

• Uses the Renpho Health API (cloud.renpho.com), not the legacy API
• Implements AES-128-ECB encryption for API communication
• Handles JavaScript BigInt precision for large user IDs
• Caches authentication tokens (50 min) and measurements (5 min) to reduce API calls

Privacy

• Credentials are only used to authenticate with Renpho's API
• No data is stored permanently or sent to third parties
• All communication uses HTTPS

Credits

API reverse engineering based on RenphoGarminSync-CLI by forkerer.

License

MIT