iMCP

iMCP is an open-source macOS app that connects your digital life to AI assistants. Created by Mattt Thompson (of NSHipster) and released under the MIT license, it runs a local Model Context Protocol (MCP) server that gives AI clients like Claude Desktop, the ChatGPT desktop app and local models via llama.cpp secure access to your Messages, Contacts, Calendar, Reminders, HomeKit home and more. The project has around 1,800 stars and is actively maintained, with code last updated in 2026.

Overview

Personal data on a Mac is locked inside individual apps. iMCP bridges that gap: install the app, grant the permissions you choose, and any MCP-compatible AI client can search your contacts, view and create calendar events, read reminders and control HomeKit accessories — all through a local server on your own machine, with no cloud relay in between.

Key Features

• MCP server for Messages, Contacts, Calendar, Reminders and more Apple services
• HomeKit support: find and control accessories, scenes and automations
• Works with Claude Desktop, the ChatGPT app, llama.cpp and other MCP clients
• Local-first design: data stays on your Mac and access is permission based
• Native macOS app with a simple install-and-connect setup
• MIT licensed and open source, with an active release cadence

💳 Pricing

Free. iMCP is open source under the MIT license and the app is a free download from the official site.

Who Is It For

Mac users who want their AI assistant to actually help with messages, schedules and smart-home control, and MCP enthusiasts looking for a well-built personal-data server.