android-source-explorer-mcp

Overview

The Android Source Explorer MCP server enables AI tools to access current Android source code in real-time, addressing the common problem of outdated training data. It uses a hybrid architecture combining Tree-sitter for fast AST parsing and optional LSP features for cross-file navigation. The server maintains a local cache of AOSP and AndroidX sources to ensure instant lookups and offline capabilities.

Try asking AI

After installing, here are 3 things you can ask your AI assistant:

• search_classes

  Search for classes by glob pattern or substring

  Try:Find all classes with 'Lifecycle' in the nameTry:Search for View-related classes
• lookup_class

  Retrieve the full source code for a specific class

  Try:Show me the source code for Activity classTry:Get the implementation of RecyclerView.Adapter
• lookup_method

  Extract a precise method body + its Javadoc/annotations

  Try:Find the onCreate method implementationTry:Get the signature and documentation for findViewById
• list_class_members

  List all method and field signatures in a class

  Try:Show all methods in Fragment classTry:List public fields in ViewModel
• get_class_hierarchy

  Get the inheritance chain (superclass + interfaces)

  Try:Show the hierarchy for View classTry:What interfaces does Context implement?
• search_in_source

  Search for text/regex across the entire source tree

  Try:Find all usages of LayoutInflaterTry:Search for 'parcelable' implementation patterns
• goto_definition

  Resolve the cross-file definition of a symbol

  Try:Where is the LifecycleOwner interface defined?Try:Go to the definition of Bundle.putString
• find_references

  Find all usages of a class/method across the whole tree

  Try:Find all references to ViewModelTry:Where is onSaveInstanceState called?
• get_type_info

  Get documentation and type info via hover data

  Try:Show documentation for Activity's lifecycle methodsTry:What type is Context.getSystemService?

Comparable tools

Installation

uv tool install git+https://github.com/mrmike/android-source-explorer-mcp

# Sync API 36 (Android 16) and common AndroidX packages
android-source-explorer sync --api-level 36 --androidx "compose,lifecycle,activity"

{
  "mcpServers": {
    "android-sources": {
      "command": "android-source-explorer",
      "args": ["serve"]
    }
  }
}

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