Macuse MCP by Macuse App is a Model Context Protocol server that enables AI assistants to interact directly with macOS applications. Built as a native macOS application, it extends the capabilities of AI clients like Claude Desktop and VS Code by allowing them to control various system functions. This free tool transforms Mac apps into local resources for AI agents, providing a bridge between AI commands and desktop actions. It supports diverse AI assistant needs, from scheduling to app control.

What does Macuse MCP connect to?

Macuse MCP connects AI assistants directly to macOS applications and system functionality. It operates as a Model Context Protocol (MCP) server, turning Mac apps into local tools for AI agents. The core Macuse MCP CLI is a native macOS application, likely developed with Swift or Objective-C, ensuring deep integration. For specific distribution methods, such as the .mcpb bundle for Claude Desktop, a Node.js wrapper spawns the native binary, forwarding JSON-RPC over stdin/stdout.

Core features and tools

Macuse MCP exposes several capabilities for AI interaction. These include Calendar for managing events, Mail for drafting replies and organizing messages, and Notes for capturing ideas. It also offers Reminders for task management, Messages for communication, and Stickies for quick notes. Contacts allows looking up information, while Maps & Location provides place search and directions. Shortcuts enables running installed automations, and Computer Use grants control over any Mac application interface.

Who is it for?

Macuse MCP is for users of AI assistants and agents who need their AI to interact directly with macOS applications and system functionality. It allows AI clients to perform actions like scheduling meetings, drafting emails, or controlling desktop apps. Compatible AI clients include Claude Desktop, Cursor, and VS Code. This tool is valuable for anyone seeking to extend their AI's reach into their daily macOS operations. Skip this if your AI assistant does not require direct interaction with your local macOS environment.

How to get started

Access is granted through a standard OAuth authorization flow, where each MCP client receives its own authorization. Configuration for clients like Claude Desktop involves adding a specific JSON entry that specifies the "macuse" binary command, arguments ("--stdio"), and an ACCESS_TOKEN. The transport protocol supported is "stdio" (JSON-RPC over stdin/stdout).

Use cases

• An AI assistant schedules a meeting in Calendar based on a natural language request.
• An AI drafts a reply to an email in the Mail app.
• An AI controls any Mac application by clicking, typing, and navigating its interface through Computer Use.

Macuse MCP provides a direct link for AI assistants to manage macOS applications and system functions. Its per-client OAuth model and granular permissions offer control over AI interactions. This tool is suitable for users aiming to deepen their AI's integration with their desktop environment.