Wyzer MCP Server

A Node.js MCP (Model Context Protocol) server that exposes Wyze smart home devices (plugs, switches, thermostats) for control via Claude Desktop or Home Assistant.

Features

• Device Discovery: Automatically discovers all Wyze plugs, switches, and thermostats
• Combined Devices: Intelligently combines thermostats and plugs with the same nickname for unified control
• Online Detection: Tracks device availability based on last-seen timestamps (2-day threshold)
• Dual Transport: Supports both stdio (Claude Desktop) and HTTP/SSE (Home Assistant)
• Request Logging: Optional logging of all tool calls for debugging

Installation

cd wyzer-mcp
npm install

Configuration

Wyze Credentials

Wyze API credentials are managed by @caseman72/wyzer-api via .env.local. The file is searched in:

1. Current working directory
2. ~/.config/wyze/.env.local
3. ~/.wyze.env.local

Create a .env.local file with your Wyze credentials:

[email protected]
WYZE_PASSWORD_HASH=your-password-md5-hash
WYZE_KEY_ID=your-api-key-id
WYZE_API_KEY=your-api-key
WYZE_AUTH_API_KEY=your-auth-api-key

Visit the Wyze Developer Portal to create your API credentials. The password hash is the MD5 hash of your Wyze account password.

Server Configuration (Optional)

Copy config.example.json to config.json to customize server settings:

{
  "server": {
    "transport": "stdio",
    "httpPort": 8000,
    "httpHost": "127.0.0.1"
  },
  "devices": {
    "refreshIntervalMinutes": 60
  },
  "monitoring": {
    "enabled": false,
    "logFile": "./wyzer-mcp-requests.log"
  }
}

Environment variable overrides:

• WYZER_HTTP_PORT - HTTP server port (default: 8000)
• WYZER_HTTP_HOST - HTTP server host (default: 127.0.0.1)

Usage

stdio Transport (Claude Desktop)

node src/index.js

HTTP Transport (Home Assistant)

The HA custom component requires the MCP server to be exposed over HTTP/SSE. Use mcp-proxy to bridge the stdio server.

Install mcp-proxy

brew install mcp-proxy

Start the proxy

# Binds to all interfaces so Docker can reach it
mcp-proxy --port 8081 --host 0.0.0.0 -- node /path/to/wyzer-mcp/src/index.js

Home Assistant Integration

Tested with Home Assistant 2026.1.3.

1. Copy the custom component to your HA config directory:

   cp -r custom_components/wyzer_mcp ~/.home-assistant/custom_components/

2. Restart Home Assistant

3. Add the integration: Settings → Devices & Services → Add Integration → "Wyze MCP"

4. Enter connection details:

   • Host: host.docker.internal (for Docker) or your Mac's IP
   • Port: 8081

Optional: Card-Mod and Theme

This repo includes a card-mod JS file and a clean theme for customizing the HA frontend. To install:

# Copy card-mod.js to HA www directory
mkdir -p ~/.home-assistant/www
cp card-mod.js ~/.home-assistant/www/

# Copy the clean theme
mkdir -p ~/.home-assistant/themes
cp themes/clean.yaml ~/.home-assistant/themes/

Then add to your configuration.yaml:

frontend:
  themes: !include_dir_merge_named themes
  extra_module_url:
    - /local/card-mod.js

The included configuration.yaml shows a complete example with template sensors.

Configure Devices

Edit custom_components/wyzer_mcp/devices.yaml to define which devices appear in HA:

switches:
  # Plugs
  - id: my_plug
    name: My Plug
    device_id: "XXXXXXXXXXXX"    # Wyze device ID (MAC address)
    device_type: plug

  # Wall Switches
  - id: my_switch
    name: My Switch
    device_id: "LD_SS1_XXXXXXXXXXXX"
    device_type: switch

thermostats:
  # Combined thermostat + plug (for space heaters)
  - id: my_thermostat
    name: My Thermostat
    device_id: "combined_CO_EA1_XXXXXXXXXXXXXXXXXXXXXXXX"
    plug_id: "XXXXXXXXXXXX"    # Creates a separate heater switch entity

Notes:

• Use the device ID (MAC address) rather than nickname for stability
• device_type must be plug or switch to call the correct control API
• For combined thermostats with plug_id, a separate "Heater" switch entity is created

Entity Types

The integration creates the following entity types:

| Type | Platform | Description | |------|----------|-------------| | Plugs | switch | On/off control for Wyze plugs | | Wall Switches | switch | On/off control for Wyze wall switches | | Thermostats | climate | Temperature control, HVAC mode | | Heater Switches | switch | On/off control for plug in combined devices | | API Status | sensor | Shows API rate limit info |

Device Availability

Devices show as "Unavailable" in HA if they haven't reported to Wyze in over 2 days. This is determined by the RSSI timestamp from the Wyze API.

Auto-start mcp-proxy with launchd

Create ~/Library/LaunchAgents/com.wyzer.mcp-proxy.plist:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>Label</key>
    <string>com.wyzer.mcp-proxy</string>
    <key>ProgramArguments</key>
    <array>
        <string>/opt/homebrew/bin/mcp-proxy</string>
        <string>--port</string>
        <string>8081</string>
        <string>--host</string>
        <string>0.0.0.0</string>
        <string>--</string>
        <string>/opt/homebrew/bin/node</string>
        <string>/path/to/wyzer-mcp/src/index.js</string>
    </array>
    <!-- Required: allows Wyze API to write token cache -->
    <key>WorkingDirectory</key>
    <string>/path/to/wyzer-mcp</string>
    <key>RunAtLoad</key>
    <true/>
    <key>KeepAlive</key>
    <true/>
    <key>StandardOutPath</key>
    <string>/tmp/wyzer-mcp-proxy.log</string>
    <key>StandardErrorPath</key>
    <string>/tmp/wyzer-mcp-proxy.err</string>
</dict>
</plist>

Then load it:

launchctl load ~/Library/LaunchAgents/com.wyzer.mcp-proxy.plist

To stop/unload:

launchctl unload ~/Library/LaunchAgents/com.wyzer.mcp-proxy.plist

Managing the service

# Check status
launchctl list | grep wyzer

# View logs
tail -f /tmp/wyzer-mcp-proxy.err

# Restart
launchctl unload ~/Library/LaunchAgents/com.wyzer.mcp-proxy.plist
launchctl load ~/Library/LaunchAgents/com.wyzer.mcp-proxy.plist

# Stop
launchctl unload ~/Library/LaunchAgents/com.wyzer.mcp-proxy.plist

Claude Desktop Integration

Add to ~/.claude/claude_desktop_config.json:

{
  "mcpServers": {
    "wyzer": {
      "command": "node",
      "args": ["/path/to/wyzer-mcp/src/index.js"],
      "env": {}
    }
  }
}

MCP Tools

list_devices

List all discovered Wyze devices with their current status.

Parameters:

• type (optional): Filter by device type - plug, switch, thermostat, combined, or all
• refresh (optional): Force refresh device list from Wyze API

control_plug

Turn a Wyze plug on or off.

Parameters:

• deviceId: Device ID (MAC) or nickname of the plug
• state: on or off

control_switch

Turn a Wyze wall switch on or off.

Parameters:

• deviceId: Device ID (MAC) or nickname of the switch
• state: on or off

control_thermostat

Control a Wyze thermostat. For combined thermostat+plug devices, turn_on/turn_off controls the plug (heater power).

Parameters:

• deviceId: Device ID (MAC) or nickname of the thermostat
• action: set_heat, set_cool, set_mode, turn_on, or turn_off
• temperature (optional): Temperature setpoint (required for set_heat and set_cool)
• mode (optional): Thermostat mode (required for set_mode) - heat, cool, auto, or off

get_device_status

Get detailed status of any Wyze device. Returns online status, last seen timestamp, and current state.

Parameters:

• deviceId: Device ID (MAC) or nickname of the device

Response includes:

• is_online: Whether device has reported within 2 days
• last_seen: ISO timestamp of last device report
• rssi: Signal strength (for plugs)
• is_on: Current on/off state
• Temperature/humidity/setpoints (for thermostats)

get_api_status

Get Wyze API rate limit status. Returns remaining calls, reset time, and cache info.

Combined Devices

When a thermostat and plug share the same nickname (case-insensitive), they are automatically combined into a single "combined" device. This is useful for space heaters controlled by smart plugs with thermostats for temperature sensing.

For combined devices:

• turn_on/turn_off actions control the plug (heater power)
• set_heat/set_cool/set_mode actions control the thermostat

Request Monitoring

Enable request logging in config.json:

{
  "monitoring": {
    "enabled": true,
    "logFile": "./wyzer-mcp-requests.log"
  }
}

Logs are written in JSON Lines format with timestamps, tool names, parameters, and results.

License

MIT