Android MCP Server

MCP server for controlling Android emulators and devices via ADB. Gives AI assistants the ability to see, interact with, and debug Android apps — taking screenshots, tapping elements, reading logs, and documenting bugs.

npm Package | GitHub | Issues

^ Sped up for better viewing. More demos and test cases.

Features

• 21 tools for complete Android device control
• Screenshot capture with intelligent compression (Sharp-based, max 1280px)
• UI tree inspection — read element hierarchy with bounds, text, resource IDs, and state
• Touch automation — tap, swipe, scroll, type text, press hardware keys
• Element targeting — find and tap elements by resource-id, text, or content-desc
• App lifecycle — install APKs, launch apps, inspect current activity
• Logcat integration — filter by package, log level, or timestamp
• Device management — list devices, start emulators, get device info
• Compound actions — tap_and_wait combines tap + settle + UI tree in one round trip
• Persistent ADB shell — reuses a single shell session for faster command execution
• Device info caching — queries device properties once per session
• Multi-device support — target specific devices by ID
• Zero app modifications — works with any Android app via ADB, no SDK integration needed

Prerequisites

• Node.js 18+
• Android SDK with platform-tools (ADB) and emulator
• A running Android emulator or connected device

Finding your ANDROID_HOME

The server auto-discovers the SDK at ~/Library/Android/sdk (macOS) or via ANDROID_HOME. If your SDK is elsewhere, set ANDROID_HOME in the MCP config (see below).

To check:

# macOS
ls ~/Library/Android/sdk/platform-tools/adb

# Or find it via Android Studio: Settings > Languages & Frameworks > Android SDK

Setup

claude mcp add --scope user android -- npx -y android-mcp-server

claude mcp add --scope user --env ANDROID_HOME=/path/to/sdk android -- npx -y android-mcp-server

{
  "mcpServers": {
    "android": {
      "command": "npx",
      "args": ["-y", "android-mcp-server"],
      "env": {
        "ANDROID_HOME": "/path/to/android/sdk"
      }
    }
  }
}

{
  "mcp": {
    "servers": {
      "android": {
        "command": "npx",
        "args": ["-y", "android-mcp-server"],
        "env": {
          "ANDROID_HOME": "/path/to/android/sdk"
        }
      }
    }
  }
}

{
  "mcpServers": {
    "android": {
      "command": "npx",
      "args": ["-y", "android-mcp-server"],
      "env": {
        "ANDROID_HOME": "/path/to/android/sdk"
      }
    }
  }
}

{
  "mcpServers": {
    "android": {
      "command": "npx",
      "args": ["-y", "android-mcp-server"],
      "env": {
        "ANDROID_HOME": "/path/to/android/sdk"
      }
    }
  }
}

{
  "mcpServers": {
    "android": {
      "command": "npx",
      "args": ["-y", "android-mcp-server"],
      "env": {
        "ANDROID_HOME": "/path/to/android/sdk"
      }
    }
  }
}

git clone https://github.com/martingeidobler/android-mcp-server.git
cd android-mcp-server
npm install
npm run build
claude mcp add --scope user android -- node /path/to/android-mcp-server/dist/index.js

Available Tools

Device Management

| Tool | Description | |------|-------------| | list_devices | List connected Android devices and emulators | | list_avds | List available Android Virtual Devices | | start_emulator | Start an AVD by name (waits up to 60s) |

Screenshot & UI Analysis

| Tool | Description | |------|-------------| | screenshot | Take screenshot for visual analysis. Optional save_path to save to disk | | get_ui_tree | Get UI element hierarchy with bounds, text, resource IDs, and state |

Interaction

| Tool | Description | |------|-------------| | tap | Tap at screen coordinates | | tap_element | Tap element by resource-id, text, or content-desc | | tap_and_wait | Tap element, wait for UI to settle, return new UI tree — single round trip | | type_text | Type text into focused input | | press_key | Press key (back, home, enter, tab, delete, menu, etc.) | | swipe | Swipe gesture between coordinates | | scroll_to_element | Scroll until element is visible | | wait_for_element | Wait for element to appear (with timeout) |

Diagnostics

| Tool | Description | |------|-------------| | get_logs | Get logcat output, filterable by package, log level, and time | | clear_logs | Clear logcat buffer (call before reproducing a bug for clean output) | | get_device_info | Get model, Android version, API level, screen size, DPI |

App Management

| Tool | Description | |------|-------------| | launch_app | Launch app by package name | | install_apk | Install APK file | | get_current_activity | Get foreground app and activity | | pull_file | Pull a file from the device to local filesystem | | adb_shell | Run arbitrary ADB shell command |

Example Workflows

Bug documentation

"Clear the logs, open the settings screen, tap the save button, then show me the logs and a screenshot"

Claude will: clear_logs → launch_app → tap_element → get_logs(package_name="com.example.app", level="E") → screenshot(save_path="./bugs/settings-crash.png")

UI testing

"Navigate through the login flow and verify each screen matches the designs"

Claude will use screenshot + get_ui_tree to see and understand each screen, tap_element/type_text to interact, and its vision capabilities to compare against mockups or descriptions.

Smoke testing

"Install the APK, launch the app, and tap through the main screens to check nothing crashes"

Claude will: install_apk → launch_app → navigate with tap_element → get_logs(level="E") to check for errors after each screen.

Element interaction

"Open Settings, search for 'display', tap the first result, then go back"

Claude will: launch_app(package_name="com.android.settings") → tap_and_wait(by="text", value="Search settings") → type_text("display") → tap_and_wait(by="text", value="Display") → press_key(key="back")

Demos & Prompting Guide

• DEMOS.md — copy-paste prompt scenarios you can try right now
• PROMPTING.md — best practices, performance tips, and common pitfalls

How It Works

The server communicates over stdio using the Model Context Protocol. All device interaction goes through ADB — no modifications to your app are required. Screenshots are captured in memory, compressed, and returned as base64 images that the AI can see and analyze visually.

Contributing

Contributions are welcome! Please see CONTRIBUTING.md for guidelines.

License

MIT - see LICENSE.