How do I add an MCP server to Msty?

In Msty open Settings → Tools, add a tool, choose STDIO / JSON, and paste { "command": "npx", "args": ["-y","local-mcp@latest"] }, then save.

Does connecting Msty to my Mac apps use the cloud?

No. LMCP runs the tools locally on your Mac; nothing leaves your machine. LMCP is free and needs no API keys.

What can Msty do with LMCP?

LMCP gives Msty 230+ local Mac tools: Mail, Calendar, Contacts, iMessages, Notes, Reminders, Files, Microsoft Teams, OneDrive and more — all on your Mac.

How to Add MCP Tools to Msty on Mac (Mail, Calendar, Files)

What this lets you do

Msty is a polished desktop app for running local and cloud models, with an MCP toolbox. Add LMCP and Msty can act on the apps on your Mac — read your email, check your calendar, search Teams — all locally.

Step 1: Install LMCP

In any terminal (macOS 12+):

curl -fsSL 'https://local-mcp.com/install?ref=guide-msty-mac' | bash

Or download the app. LMCP starts in your menu bar.

Step 2: Add LMCP to Msty

Open Settings → Tools, add a tool, and choose STDIO / JSON. Paste this configuration:

{
  "command": "npx",
  "args": ["-y", "local-mcp@latest"]
}

Save. Msty launches the server over stdio — it uses npx, so you need Node.js installed.

Step 3: Try it

Enable the tool in a chat and ask:

List my email accounts

Msty calls the tool on your Mac and returns the result.

Troubleshooting

No tools appear — make sure the Local MCP app is running (menu-bar icon) and npx is on your PATH.

Prefer a remote connection? Msty also supports HTTP; the local stdio setup above is the simplest and keeps everything on your Mac.