MCP HarmonyOS

A Model Context Protocol (MCP) server for HarmonyOS development. This server enables AI assistants like Claude to interact with HarmonyOS projects, devices, and applications.

Features

• Device Management: List and query connected HarmonyOS devices
• Project Information: Read project configuration, modules, and build outputs
• Application Management: List and inspect installed applications on devices
• Build Verification: Check build outputs and project structure

Prerequisites

• Node.js 18+
• HarmonyOS DevEco Studio (for hdc command-line tools)
• hdc must be available in your PATH

Installation

Global Installation (Recommended)

npm install -g mcp-harmonyos

Or use with npx

npx mcp-harmonyos

Configuration

For OpenCode

Add to your ~/.config/opencode/opencode.json:

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "harmonyos": {
      "type": "local",
      "command": ["npx", "-y", "mcp-harmonyos"],
      "enabled": true
    }
  }
}

For Claude Desktop

Add to your Claude Desktop configuration file:

macOS: ~/Library/Application Support/Claude/claude_desktop_config.json

Windows: %APPDATA%\Claude\claude_desktop_config.json

{
  "mcpServers": {
    "harmonyos": {
      "command": "mcp-harmonyos"
    }
  }
}

Available Tools

Device Management

harmonyos_list_devices

List all connected HarmonyOS devices.

Returns: Array of devices with UDID and status

[
  {
    "udid": "7001005458323933328a01bcf4251a00",
    "status": "connected"
  }
]

harmonyos_get_device_info

Get detailed information about a specific device.

Parameters:

• deviceId (string): The device UDID

Returns: Device information including model, manufacturer, OS version, etc.

{
  "udid": "7001005458323933328a01bcf4251a00",
  "model": "HUAWEI Mate 60 Pro",
  "brand": "HUAWEI",
  "manufacturer": "HUAWEI",
  "osVersion": "4.0.0",
  "sdkVersion": "11",
  "buildId": "Mate60Pro 4.0.0.96"
}

Project Information

harmonyos_get_project_info

Get HarmonyOS project information from app.json5.

Parameters:

• projectPath (string): Absolute path to the HarmonyOS project root

Returns: Project metadata including bundleName, version, and modules

{
  "bundleName": "com.example.myapp",
  "versionCode": 1000000,
  "versionName": "1.0.0",
  "minCompatibleVersionCode": 1000000,
  "targetAPIVersion": 11,
  "modules": ["entry", "library"]
}

harmonyos_list_modules

List all modules in a project with their types (HAP/HSP/HAR).

Parameters:

• projectPath (string): Absolute path to the HarmonyOS project root

Returns: Array of modules with name, type, and path

[
  {
    "name": "entry",
    "type": "HAP",
    "path": "/path/to/project/entry",
    "srcPath": "entry"
  },
  {
    "name": "library",
    "type": "HSP",
    "path": "/path/to/project/library",
    "srcPath": "library"
  }
]

harmonyos_check_build_outputs

Check if build outputs exist and list them.

Parameters:

• projectPath (string): Absolute path to the HarmonyOS project root

Returns: Build output information

{
  "hasOutputs": true,
  "outputDir": "/path/to/project/outputs",
  "files": ["entry-default-signed.hap", "library-default-signed.hsp"],
  "haps": ["entry-default-signed.hap"],
  "hsps": ["library-default-signed.hsp"]
}

Application Management

harmonyos_list_installed_apps

List all installed applications on a device.

Parameters:

• deviceId (string): The device UDID

Returns: Array of installed applications

[
  {
    "bundleName": "com.example.myapp",
    "versionCode": "1000000",
    "versionName": "1.0.0"
  }
]

harmonyos_get_app_info

Get detailed information about an installed application.

Parameters:

• deviceId (string): The device UDID
• bundleName (string): The application bundle name

Returns: Detailed application information

{
  "bundleName": "com.example.myapp",
  "versionCode": "1000000",
  "versionName": "1.0.0",
  "uid": "20010044",
  "installTime": "2026-02-15 10:30:00",
  "updateTime": "2026-02-15 10:30:00",
  "isSystemApp": false,
  "isRemovable": true
}

Usage Examples

With OpenCode

After configuring the MCP server, you can ask OpenCode questions like:

"List all connected HarmonyOS devices"
"What's the bundleName of the project in /path/to/my/project?"
"Check if there are build outputs in my project"
"List all installed apps on device 7001005458323933328a01bcf4251a00"
"Show me information about com.example.myapp on my device"

OpenCode will use the MCP tools to query information and can combine them with bash commands for building and deploying:

"Build the project and deploy to device"
# OpenCode will:
# 1. Use harmonyos_get_project_info to get bundleName
# 2. Use bash: hvigorw assembleApp --no-daemon
# 3. Use harmonyos_check_build_outputs to verify
# 4. Use bash: hdc file send and bm install to deploy
# 5. Use bash: aa start to launch the app

Design Philosophy

This MCP server follows the "lightweight query + external operations" pattern:

• MCP tools provide fast, structured queries (device info, project metadata, app status)
• Bash commands handle long-running operations (building, deploying)
• AI assistants intelligently combine both for complete workflows

This design ensures:

• ✅ Fast response times (all queries < 1 second)
• ✅ No timeout issues with long builds
• ✅ Clear error messages and logs
• ✅ Easy to maintain and extend

Development

Build from Source

git clone <your-repo>
cd mcp-harmonyos
npm install
npm run build
npm start

Project Structure

mcp-harmonyos/
├── src/
│   ├── server.ts              # Main MCP server implementation
│   └── types/
│       └── harmonyos-types.ts # TypeScript type definitions
├── build/                      # Compiled JavaScript output
├── package.json
├── tsconfig.json
└── README.md

Troubleshooting

"hdc command not found"

Make sure DevEco Studio is installed and hdc is in your PATH:

# macOS/Linux
export PATH="$PATH:/path/to/deveco-studio/tools"

# Windows
set PATH=%PATH%;C:\path\to\deveco-studio\tools

"No devices connected"

1. Enable Developer Options on your device (tap Build Number 7 times)
2. Enable USB Debugging
3. Connect device via USB
4. Run hdc list targets to verify connection

"app.json5 not found"

Make sure you provide the absolute path to the project root directory (where AppScope/app.json5 is located).

License

MIT

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

Related Resources

• Model Context Protocol
• HarmonyOS Documentation
• OpenCode