Overview

LMCP is a native macOS MCP server that exposes 260 tools to AI assistants — Apple Mail, Calendar, Contacts, Messages, Notes and Reminders, plus Microsoft Teams, Slack, WhatsApp, Microsoft 365/Outlook, OneDrive/Google Drive and Office files. There are no API keys and no OAuth; everything runs on-device. It also works from web AIs such as ChatGPT, Claude.ai, Grok and Perplexity through an encrypted relay. Free with no call limits.

Pricing: Free (no call limits)

Minimum macOS: 13.0 (Ventura)

Architecture: Apple Silicon, Intel

Key Features

Native macOS MCP server exposing 260 tools to any MCP-compatible AI client
Apple app integration for Mail, Calendar, Contacts, Messages, Notes, and Reminders
Works with Microsoft Teams, Slack, WhatsApp, Microsoft 365/Outlook, OneDrive, and Google Drive
Reads and works with Office files (Word, Excel, PowerPoint, PDF)
No API keys and no OAuth — everything runs on-device
Optional encrypted relay lets web AIs like ChatGPT, Claude.ai, Grok, and Perplexity reach your Mac
Free with no call limits