Syncpen

Overview

Syncpen is a Model Context Protocol server that turns markdown into a workspace your AI can read, search, and edit directly. Every change is cryptographically signed, giving you an auditable record of what your assistant modified. Any MCP-compatible AI can call Syncpen's tools on demand during conversation or autonomous runs.

The server runs locally via the npm package syncpen-mcp, which communicates with your AI over stdio. You'll need to provide a SYNCPEN_API_KEY environment variable to authenticate. Version 1.6.3 is available now under the MIT license, and the source code lives at airbuzz/syncpen-mcp on GitHub.

Syncpen appears in the AI & Agents category and integrates with Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, Zed, and all other MCP clients. If you maintain Syncpen at airbuzz, claim this listing to verify your ownership, earn the Verified badge, and keep information up to date.

Installation

// claude_desktop_config.json
{
  "mcpServers": {
    "syncpen": {
      "command": "npx",
      "args": [
        "-y",
        "syncpen-mcp"
      ],
      "env": {
        "SYNCPEN_API_KEY": "<syncpen-api-key>"
      }
    }
  }
}

Requires SYNCPEN_API_KEY