This is a fairly mature third-party OmniFocus MCP server with broad coverage: 12 tools plus several resources, bulk operations, perspective and tag management, and natural-language repeat rules compiled into ICS rules. Its shared-daemon design solves AppleEvent timeouts when multiple clients run at once and includes a standalone fallback. The main constraints are that it is macOS-only and requires OmniFocus plus automation permission, and it is community-maintained rather than official. Users should understand the risks around removals and repeating-item history before use.
OmniFocus MCP Server is a Model Context Protocol server that connects an OmniFocus database to Claude and other MCP-compatible AI assistants. It is a third-party open-source project (MIT licensed), not an official Omni Group product. The server talks to OmniFocus through osascript using JXA and Omni Automation where appropriate, is built on the official MCP TypeScript SDK, and communicates with clients over stdio. It exposes 12 tools for querying, creating, editing, and removing tasks and projects, with support for bulk operations, perspectives, tags, and natural-language repeating rules that the server compiles into ICS recurrence rules. It also exposes resources such as omnifocus://inbox, omnifocus://today, omnifocus://flagged, and omnifocus://stats for clients to attach as context. On launch it uses a shared background daemon (a Unix domain socket in a 0700 directory) so that the cap on concurrent osascript calls is global. It requires macOS with OmniFocus installed and Node.js 20 or later.
{
"mcpServers": {
"omnifocus": {
"command": "npx",
"args": ["-y", "omnifocus-mcp"]
}
}
}