How do I add an MCP server to Goose?

Run goose configure → Add Extension → Command-line Extension, name it local-mcp with command "npx -y local-mcp@latest". Or add it under extensions in ~/.config/goose/config.yaml with type stdio, cmd npx, args ["-y","local-mcp@latest"].

Does connecting Goose to my Mac apps use the cloud?

No. LMCP runs the tools locally on your Mac; the data never leaves your machine. LMCP is free and needs no API keys.

What can Goose do with LMCP?

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

How to Add MCP Extensions to Goose on Mac (Mail, Calendar, Files)

What this lets you do

Goose is Block’s open-source, on-machine AI agent. It talks to MCP servers as “extensions.” Add LMCP and Goose can act on the apps on your Mac — read your email, check your calendar, search Teams — all locally, no API keys.

Step 1: Install LMCP

In any terminal (macOS 12+):

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

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

Step 2: Add LMCP as a Goose extension

Easiest — the CLI: run goose configure, choose Add Extension → Command-line Extension, then:

Name: local-mcp
Command: npx -y local-mcp@latest
Timeout: 300

Or edit the config file at ~/.config/goose/config.yaml:

extensions:
  local-mcp:
    type: stdio
    cmd: npx
    args: ["-y", "local-mcp@latest"]
    timeout: 300

(Goose uses npx to launch it, so you need Node.js installed.)

Step 3: Try it

Start a Goose session and ask:

List my email accounts

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

Troubleshooting

The extension won’t start — make sure the Local MCP app is running (menu-bar icon) and npx is on your PATH.

Timeouts — a first run downloads the package; keep the extension timeout at 300s.