How to Connect Msty to Your Mac Apps with MCP

How LMCP sets up Msty — Mac: From the app's own MCP settings · Windows: From the app's own MCP settings

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 — through local tools. Your selected cloud AI provider can receive requested results.

Step 1: Install LMCP

In any terminal (macOS 13+):

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"],
  "env": { "LMCP_ORIGIN": "manual" }
}

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.