iMCP MCP Server

Content

iMCP is a macOS app that bundles a stdio MCP executable called imcp-server. The app handles service toggles, macOS permission prompts, and client approval, while the CLI proxies MCP traffic between stdin/stdout and the local app over a local-only Bonjour-discovered connection.

Use it when Claude needs narrowly scoped access to personal macOS services such as Calendar, Contacts, Messages, Location, Maps, Reminders, capture tools, Shortcuts, utilities, or Weather. Because these tools can expose personal data and some tools can write or run actions, enable only the services required for a specific workflow.

Source Review

• https://github.com/mattt/iMCP
• https://raw.githubusercontent.com/mattt/iMCP/main/README.md
• https://raw.githubusercontent.com/mattt/iMCP/main/LICENSE.md
• https://raw.githubusercontent.com/mattt/iMCP/main/CLI/main.swift
• https://raw.githubusercontent.com/mattt/iMCP/main/App/Controllers/ServerController.swift
• https://raw.githubusercontent.com/mattt/iMCP/main/App/Integrations/ClaudeDesktop.swift
• https://raw.githubusercontent.com/mattt/iMCP/main/App/Services/Messages.swift
• https://raw.githubusercontent.com/mattt/iMCP/main/App/Services/Calendar.swift
• https://raw.githubusercontent.com/mattt/iMCP/main/App/Services/Contacts.swift
• https://raw.githubusercontent.com/mattt/iMCP/main/App/Services/Capture.swift

These sources were reviewed on 2026-06-06. Prefer the live repository, README, license, CLI proxy source, server controller, Claude Desktop integration source, and permission-sensitive service source files for current behavior.

Features

• Bundle a macOS menu-bar app with a stdio MCP executable.
• Toggle individual macOS services on or off.
• Require macOS permission prompts for sensitive services.
• Approve or trust connecting MCP clients from the app.
• Read Calendar, Contacts, Messages, Location, Maps, Reminders, and Weather data when the corresponding service is enabled.
• Create or update Calendar events, Contacts, and Reminders.
• Take pictures, record audio, and take screenshots through capture tools.
• Run Shortcuts when that service is enabled.
• Add or update the iMCP server entry in Claude Desktop configuration.
• Return structured JSON-LD style results for many tool calls.

Installation

Install the iMCP macOS app from the upstream release or Homebrew cask, then open the menu-bar app and enable only the services you want Claude to access.

Use the app's Claude Desktop configuration action, or manually configure an MCP client with the bundled server command:

{
  "mcpServers": {
    "iMCP": {
      "command": "{path-to-imcp-server}"
    }
  }
}

After connecting, approve the client in iMCP before using the tools. Avoid trusting a client permanently until you are comfortable with the service set it can access.

Use Cases

• Ask Claude to summarize upcoming events from an approved calendar.
• Search recent Messages with specific participants and date ranges.
• Look up contact details before drafting a reply.
• Create a reminder or calendar event after reviewing the proposed fields.
• Ask for route, ETA, place, weather, or location context.
• Capture a screenshot or image only when visual context is needed.
• Run a reviewed local Shortcut as part of a personal workflow.

Safety and Privacy

iMCP is powerful because it connects Claude to personal macOS data. That also makes it high-trust software. Start with all optional services disabled, enable one service at a time, and test with low-sensitivity data before using it for private calendars, personal messages, work contacts, location data, screenshots, audio, or camera capture.

Pay special attention to write-capable tools. Creating reminders, calendar events, contacts, and running Shortcuts can change local state or trigger other automation. Review the exact tool call before approving it, and use client trust settings sparingly.

Duplicate Check

No mattt/iMCP, iMCP MCP Server, or matching iMCP source URL entry was found in content/mcp or README.md. Existing Mac Messages and Calendar entries cover narrower standalone projects; this entry covers iMCP's app-mediated, multi-service macOS MCP server.