MacOS Clipboard MCP Server

MacOS Clipboard MCP Server

Provides AI assistants access to the macOS clipboard content, supporting text, images, and binary data via OSAScript.

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OS Automation
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Tools

getClipboardContents

Fetch the contents of the clipboard (text, images, or binary data). Used to see what is on the clipboard. IMPORTANT: This tool should be called every time clipboard contents are needed as clipboard data can change; results should not be cached.

README

MacOS Clipboard MCP Server

An MCP server that provides access to the macOS clipboard via OSAScript. This tool allows AI assistants to see what content is on the user's clipboard, including text, images, and binary data.

Features

  • Retrieve content from the macOS clipboard
  • Supports multiple content types:
    • Text
    • Images (PNG)
    • Raw binary data

Installation

bun install

Usage

To start the server:

bun run start

For development with hot reloading:

bun run dev

Alternative development modes:

bun run dev2      # Run with fastmcp dev
bun run inspect   # Run with fastmcp inspector
bun run mcp-cli   # Run with mcp-cli tool

Implementation Notes

  • Uses AppleScript via the osascript command to interact with the macOS clipboard
  • Handles various clipboard content types
  • Content is returned with appropriate MIME types
  • The clipboard should always be checked on demand (not cached) as content can change between requests

Requirements

  • macOS operating system
  • Bun runtime

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