Android Dev

A Model Context Protocol (MCP) server that provides Android development assistance following NowInAndroid best practices. This server can be used with any MCP-compatible AI tool (Claude, GPT, Gemini, etc.).

Features

Tools Available

Tool	Description
get_quick_reference	Quick overview of patterns and available tools
get_architecture_reference	Full architecture documentation (Data, Domain, UI layers)
get_compose_patterns	Jetpack Compose UI patterns
get_modularization_guide	Module structure and dependencies
get_gradle_setup	Build configuration and convention plugins
get_testing_patterns	Testing approach with test doubles
generate_feature_module	Generate complete feature module code
generate_viewmodel	Generate ViewModel with UiState
generate_repository	Generate offline-first repository
search_documentation	Search across all documentation

Quick Start

Option 1: Docker (Recommended)

# Build and run with Docker Compose
docker-compose up -d

# Or build and run manually
docker build -t android-dev-mcp .
docker run -d -p 3000:3000 --name android-mcp android-dev-mcp

The server will be available at:

• SSE endpoint: http://localhost:3000/sse
• Health check: http://localhost:3000/health

Option 2: Local Development

# Install dependencies
npm install

# Build
npm run build

# Run in SSE mode (for network access)
npm start -- --sse

# Or run in stdio mode (for local CLI)
npm start

Connecting AI Clients

Claude Desktop

Add to your Claude Desktop config (~/.config/claude/claude_desktop_config.json on Linux/Mac or %APPDATA%\Claude\claude_desktop_config.json on Windows):

{
  "mcpServers": {
    "android-dev": {
      "transport": "sse",
      "url": "http://localhost:3000/sse"
    }
  }
}

Claude Code

claude mcp add android-dev --transport sse --url http://localhost:3000/sse

Other MCP Clients

Configure your MCP client with:

• Transport: SSE
• URL: http://localhost:3000/sse

Example Usage

Once connected, you can ask your AI assistant questions like:

• "What's the recommended architecture for an Android app?"
• "Generate a feature module for user-profile with package com.myapp"
• "Show me the ViewModel pattern from NowInAndroid"
• "How do I set up offline-first data sync?"
• "Generate a repository for the Task entity"
• "Search documentation for navigation"

API Endpoints

Endpoint	Method	Description
/sse	GET	SSE connection for MCP
/messages	POST	Message handling
/health	GET	Health check

Environment Variables

Variable	Default	Description
PORT	3000	Server port
MCP_TRANSPORT	sse	Transport mode (sse or stdio)
NODE_ENV	production	Node environment

Project Structure

android-dev-mcp/
├── src/
│   └── index.ts          # Main server code
├── references/           # Documentation files
│   ├── architecture.md
│   ├── compose-patterns.md
│   ├── gradle-setup.md
│   ├── modularization.md
│   └── testing.md
├── dist/                 # Compiled JavaScript
├── Dockerfile
├── docker-compose.yml
├── package.json
└── tsconfig.json

Extending the Server

Adding New Tools

Edit src/index.ts and add a new tool:

server.tool(
  "my_new_tool",
  "Description of what the tool does",
  {
    param1: {
      type: "string",
      description: "Parameter description",
    },
  },
  async ({ param1 }) => ({
    content: [{ type: "text", text: `Result for ${param1}` }],
  })
);

Adding New Documentation

1. Add markdown files to references/
2. Create a loader function in src/index.ts
3. Register a new tool to expose it

License

MIT

References

• NowInAndroid - Google's reference Android app
• Model Context Protocol - MCP specification
• Android Architecture - Official guide