Drews Xcode

PyPI Python Versions Downloads MCP macOS Only Xcode License: MIT

GitHub last commit

An MCP (Model Context Protocol) server that enables AI assistants to control and interact with Xcode for Apple platform development.

Renamed from xcode-mcp-server. With several unrelated projects sharing that name — and Xcode itself now shipping a built-in MCP server — this project is now drews-xcode-mcp. Existing setups keep working: the old PyPI name is a compatibility package that forwards to this one, and all settings carry over. When convenient, update your MCP configuration to run drews-xcode-mcp. If your server key/name is the old default xcode-mcp-server, we recommend renaming it to drews-xcode-mcp too — just remember to update any tool permission allowlists referencing the old tool names (mcp__xcode-mcp-server__* becomes mcp__drews-xcode-mcp__*). If you chose a custom key, keep it and tool permissions are unaffected.

What It Does

This server allows AI assistants (like Claude, Cursor, or other MCP clients) to:

• Discover and navigate your Xcode projects and source files
• Build and run iOS, macOS, tvOS, and watchOS applications
• Execute and monitor tests with detailed results
• Debug build failures by retrieving errors and warnings
• Capture console output from running applications
• Take screenshots of Xcode windows and iOS simulators
• Manage simulators and view their status

The AI can perform complete development workflows - from finding a project, to building it, running tests, debugging failures, and capturing results.

Requirements

• macOS - This server only works on macOS
• Xcode - Xcode must be installed
• Python 3.10+ - For running the server (uvx will fetch a compatible Python automatically if your system Python is older)

Security

The server implements path-based security to control which directories are accessible:

• With restrictions: Set XCODEMCP_ALLOWED_FOLDERS=/path1:/path2:/path3 to limit access to specific directories
• Default: If not specified, allows access to your home directory ($HOME)

Security requirements:

• All paths must be absolute (starting with /)
• No .. path components allowed
• All paths must exist and be directories

Setup

First, ensure uv is installed (required for all methods below):

which uv || brew install uv

1. Claude Code (Recommended)

claude mcp add --scope user --transport stdio -- drews-xcode-mcp `which uvx` drews-xcode-mcp

To run a specific version, use:

# Example: How to run v1.3.0b6
claude mcp add --scope user --transport stdio -- drews-xcode-mcp `which uvx` drews-xcode-mcp==1.3.0b6

That's it! Claude Code handles the rest automatically.

2. Claude Desktop

Edit your Claude Desktop config file (~/Library/Application Support/Claude/claude_desktop_config.json):

{
    "mcpServers": {
        "drews-xcode-mcp": {
            "command": "uvx",
            "args": [
                "drews-xcode-mcp"
            ]
        }
    }
}

If you'd like to allow only certain projects or folders to be accessible by drews-xcode-mcp, add the env option, with a colon-separated list of absolute folder paths, like this:

{
    "mcpServers": {
        "drews-xcode-mcp": {
            "command": "uvx",
            "args": [
                "drews-xcode-mcp"
            ],
            "env": {
                "XCODEMCP_ALLOWED_FOLDERS": "/Users/andrew/my_project:/Users/andrew/Documents/source"
            }
        }
    }
}

3. Cursor AI

In Cursor: Settings → Tools & Integrations → + New MCP Server

Or edit ~/.cursor/mcp.json directly:

{
    "mcpServers": {
        "drews-xcode-mcp": {
            "command": "uvx",
            "args": ["drews-xcode-mcp"]
        }
    }
}

Optional: Add folder restrictions with an env section (same format as Claude Desktop above).

Usage

Once configured, simply ask your AI assistant to help with Xcode tasks:

• "Find all Xcode projects in my home directory"
• "Build the project at /path/to/MyProject.xcodeproj"
• "Run tests for this project and show me any failures"
• "What are the build errors in this project?"
• "Show me the directory structure of this project"
• "Take a screenshot of the Xcode window"

Most tools work with paths to .xcodeproj or .xcworkspace files, or with regular directory paths for browsing and navigation.

Advanced Configuration

Command Line Arguments

When running the server directly (for development or custom setups), these options are available:

Build output control:

• --no-build-warnings - Show only errors, exclude warnings
• --always-include-build-warnings - Always show warnings (default)

Notifications:

• --show-notifications - Enable macOS notifications for operations
• --hide-notifications - Disable notifications (default)

Access control:

• --allowed /path - Add allowed folder (can be repeated)

Example:

drews-xcode-mcp --no-build-warnings --show-notifications --allowed ~/Projects

Note: When using MCP clients (Claude, Cursor), configure these via the env section in your client's config file instead.

Development

The server is built with FastMCP and uses AppleScript to communicate with Xcode.

Local Testing

Test with MCP Inspector:

export XCODEMCP_ALLOWED_FOLDERS=~/Projects
mcp dev drews_xcode_mcp/__main__.py

This opens an inspector interface where you can test tools directly. Provide paths as quoted strings: "/Users/you/Projects/MyApp.xcodeproj"

Limitations

• AppleScript syntax may need adjustments for specific Xcode versions
• Some operations require the project to be open in Xcode first