Cairn

Overview

Cairn is a Model Context Protocol server that lets you log Claude Code work sessions, file edits, and tasks directly to your Cairn account. Instead of switching between apps, AI assistants can call Cairn as a set of native tools, keeping your work tracked and synchronized in one place.

The server runs locally as a Python package. Install it via uvx cairn-mcp, then provide your Cairn API Key to authenticate. The current release is v0.1.2, published under the MIT license with source code at cybort360/cairn on GitHub.

Cairn appears in the Development category on mcp.site and works with any MCP client, including Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, and Zed. If you maintain this project, claim your listing to verify ownership and keep information up to date.

Installation

// claude_desktop_config.json
{
  "mcpServers": {
    "cairn": {
      "command": "uvx",
      "args": [
        "cairn-mcp"
      ]
    }
  }
}