Matter Controller MCP Server

A powerful Model Context Protocol (MCP) server that provides comprehensive Matter device control capabilities. This server enables AI assistants and applications to discover, commission, and control Matter-compatible smart home devices through a standardized interface.

Features

• 🔌 Device Management: Commission and decommission Matter devices with automatic connection
• 💡 Device Control: Control lights, switches, and other Matter devices
• 🎛️ Advanced Controls: Support for dimming, color control, and color temperature
• 📊 Device Information: Retrieve detailed device information and capabilities structure
• 🔧 Attribute Access: Read and write device cluster attributes directly
• 🌐 Multiple Transports: Support for stdio, SSE, and streamable HTTP transports
• 🔧 Flexible Configuration: Environment-based configuration options

Supported Device Types

• Lighting: On/off lights, dimmable lights, color lights
• Switches: Smart switches and outlets
• Sensors: Various sensor types (temperature, humidity, etc.)
• And more: Any Matter-compatible device

Architecture

┌─────────────────┐    ┌──────────────────┐    ┌─────────────────┐
│   MCP Client    │◄──►│  MCP Server      │◄──►│  Matter Network │
│  (AI Assistant) │    │  (This Project)  │    │    (Devices)    │
└─────────────────┘    └──────────────────┘    └─────────────────┘

The server acts as a bridge between MCP clients and Matter devices, providing a standardized interface for device control and monitoring.

Installation

NPM Package

npm install -g matter-controller-mcp

From Source

git clone https://github.com/0x1abin/matter-controller-mcp.git
cd matter-controller-mcp
npm install
npm run build

Usage

As MCP Server (Default - stdio transport)

npx matter-controller-mcp
# or
matter-controller-mcp

SSE Transport

npx matter-controller-mcp sse
# or
matter-controller-mcp sse

Streamable HTTP Transport

npx matter-controller-mcp streamableHttp
# or
matter-controller-mcp streamableHttp

Cursor MCP Server

{
  "mcpServers": {
    "matter-controller": {
      "command": "npx",
      "args": ["-y", "matter-controller-mcp", "stdio"]
    }
  }
}

Configuration

The server supports various environment variables for configuration:

# Matter controller configuration
export MATTER_UNIQUE_ID="your-unique-controller-id"          # Controller unique identifier
export MATTER_ADMIN_FABRIC_LABEL="Your Matter Controller"    # Admin fabric label  
export MATTER_LOG_LEVEL="info"                               # Log level: debug, info, warn, error

# BLE support (optional)
export ble="true"        # Enable BLE support
export ble.hci.id="0"    # BLE HCI interface ID

# Server configuration
export PORT="3001"       # Port for HTTP/SSE transports

Available Tools

Device Management

• get_controller_status: Get current controller status
• commission_device: Commission a new Matter device
• get_commissioned_devices: List all commissioned devices
• decommission_device: Remove a device from the network
• get_device_info: Get detailed device information

Device Control

• control_onoff_device: Turn devices on/off or toggle
• control_level_device: Control brightness/dimming (0-254)
• control_color_device: Control color temperature and hue/saturation

Advanced Features

• read_attributes: Read device attributes from clusters (specific attributes or all)
• write_attributes: Write attributes to device clusters (supports batch writing)

API Examples

Commission a Device

// Using manual pairing code
{
  "name": "commission_device",
  "arguments": {
    "pairingCode": "34970112332"
  }
}

// Using IP address and setup PIN
{
  "name": "commission_device",
  "arguments": {
    "ip": "192.168.1.100",
    "port": 5540,
    "setupPin": 20202021
  }
}

// Using BLE commissioning with WiFi credentials
{
  "name": "commission_device",
  "arguments": {
    "ble": true,
    "setupPin": 20202021,
    "longDiscriminator": 3840,
    "wifiSsid": "YourWiFiNetwork",
    "wifiCredentials": "YourWiFiPassword"
  }
}

Control Device

// Turn on a light
{
  "name": "control_onoff_device",
  "arguments": {
    "nodeId": "1234567890abcdef",
    "action": "on"
  }
}

// Set brightness
{
  "name": "control_level_device",
  "arguments": {
    "nodeId": "1234567890abcdef",
    "level": 128
  }
}

// Set color temperature (warm/cool white)
{
  "name": "control_color_device",
  "arguments": {
    "nodeId": "1234567890abcdef",
    "colorTemperature": 250
  }
}

// Set color (hue and saturation for colored lights)
{
  "name": "control_color_device",
  "arguments": {
    "nodeId": "1234567890abcdef",
    "hue": 120,
    "saturation": 200
  }
}

Read Device Information

// Get device details
{
  "name": "get_device_info",
  "arguments": {
    "nodeId": "1234567890abcdef"
  }
}

// Read specific attributes
{
  "name": "read_attributes",
  "arguments": {
    "nodeId": "1234567890abcdef",
    "clusterId": 6,  // OnOff cluster
    "endpointId": 1,
    "attributeIds": [0]  // OnOff attribute
  }
}

// Read all attributes in a cluster
{
  "name": "read_attributes",
  "arguments": {
    "nodeId": "1234567890abcdef",
    "clusterId": 6,  // OnOff cluster
    "endpointId": 1
  }
}

// Write attributes (batch writing supported)
{
  "name": "write_attributes",
  "arguments": {
    "nodeId": "1234567890abcdef",
    "clusterId": 6,  // OnOff cluster
    "endpointId": 1,
    "attributes": {
      "0": true  // Set OnOff attribute to true
    }
  }
}

Development

Prerequisites

• Node.js 18+
• TypeScript 5.6+
• Matter.js compatible system
• BLE support (optional, for BLE commissioning)

Build

npm run build                # Build the project (compiles TypeScript)
npm run start                # Start with stdio transport (default)
npm run start:sse            # Start with SSE transport
npm run start:streamableHttp # Start with streamable HTTP transport

Code Style

• Use ES modules with .js extension in import paths
• Strictly type all functions and variables with TypeScript
• Follow zod schema patterns for tool input validation
• Prefer async/await over callbacks and Promise chains
• Use descriptive variable names and proper error handling

Contributing

We welcome contributions! Please follow these steps:

1. Fork the repository
2. Create a feature branch (git checkout -b feature/amazing-feature)
3. Commit your changes (git commit -m 'Add some amazing feature')
4. Push to the branch (git push origin feature/amazing-feature)
5. Open a Pull Request

Development Guidelines

• Follow the existing code style and patterns
• Add appropriate error handling and logging
• Update documentation for new features
• Test your changes thoroughly
• Follow semantic versioning for releases

Troubleshooting

Common Issues

1. Device not found: Ensure the device is in pairing mode and on the same network
2. Connection timeout: Check network connectivity and device availability
3. Permission errors: Ensure proper permissions for BLE access (if using BLE commissioning)
4. Port conflicts: Change the PORT environment variable if using HTTP/SSE transport
5. Controller initialization failed: Check Matter.js dependencies and system compatibility
6. Device commissioning failed: Verify pairing code/PIN and network connectivity

Debug Mode

Enable debug logging for troubleshooting:

export MATTER_LOG_LEVEL="debug"

License

This project is licensed under the MIT License - see the LICENSE file for details.

Acknowledgments

• Project CHIP - The Matter standard
• Matter.js - The core Matter protocol implementation
• MCP SDK - The MCP Typescript SDK
• Model Context Protocol - The protocol specification

Made with ❤️ for the Matter and MCP communities