Claude Desktop MCP Setup on Mac
Give Claude Desktop direct access to your Mac apps — Mail, Calendar, Contacts, iMessage, Teams, Slack, WhatsApp, Microsoft 365, Office files and 233 tools. LMCP configures Claude Desktop automatically when you install it: no config files, no JSON editing, no terminal.
What this lets you do
Claude Desktop supports MCP servers natively, but out of the box it can’t see your email, calendar or chats. LMCP is a native macOS app that bridges Claude Desktop to your real apps — running 100% locally, with no API keys and no OAuth. Once installed, you can ask Claude:
- “Summarize my unread emails and draft replies to the urgent ones”
- “What did the team discuss in Teams today?”
- “Find a free slot next week and schedule a meeting with Maria”
- “Read my last iMessage thread with Sarah and remind me to follow up”
Setup — 3 steps, no config files
- Download LMCP and run the installer — signed and notarized (macOS 13+, Apple Silicon & Intel). The onboarding wizard opens automatically.
- Open LMCP from the menu bar. It detects Claude Desktop and configures it automatically — the MCP entry is written for you; there is no
claude_desktop_config.jsonto edit. - Restart Claude Desktop once. The tools appear under the 🔨 icon — ask anything about your Mail, Calendar or Teams.
macOS will prompt for the permissions each feature needs (Calendar, Contacts, Full Disk Access for Mail and iMessage) the first time Claude uses them — grant only what you want Claude to reach.
Privacy
Everything runs on your Mac. Claude Desktop talks to LMCP over a local socket; your emails, events and messages are read on-device and never uploaded, stored or proxied through any cloud. Anything Claude wants to send (an email, a message) is shown to you for confirmation first.