Mu is a remote plugin. You do not need to install anything locally. Add the server URL to your AI app's MCP configuration and you are ready to go.

Yes. Mu passed MCP Marketplace's automated security scan with a score of 9.7/10 (low risk). Every server on MCP Marketplace is security-scanned before it's listed; see the full security report on this page for the findings and permissions.

What AI apps work with Mu?

Mu uses the Model Context Protocol (MCP) and works with any MCP-compatible AI app, including Claude, ChatGPT / Codex, Gemini, Copilot, Cursor, and more.

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Mu MCP Server

by Micro

Developer ToolsLow Risk9.7MCP RegistryRemote

Free

Server data from the Official MCP Registry

News, web search, mail, markets, weather, places, files, calendar, contacts. 67 tools, one endpoint.

About

News, web search, mail, markets, weather, places, files, calendar, contacts. 67 tools, one endpoint.

Remote endpoints: streamable-http: https://micro.mu/mcp

Security Report

9.7

Low Risk9.7Low Risk

Valid MCP server (1 strong, 1 medium validity signals). No known CVEs in dependencies. Imported from the Official MCP Registry. 2 finding(s) downgraded by scanner intelligence.

67 tools verified · Open access · 3 issues found

Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.

Permissions Found in Source Code

Found by scanning the linked source code. This listing connects to a hosted endpoint, so none of this runs on your machine: it describes what the server software does where it is hosted.

HTTP Network Access

Connects to external APIs or services over the internet.

network_websocket

Applies to the server that hosts this plugin, not to your machine.

How to Connect

Remote Plugin

No local installation needed. Your AI client connects to the remote endpoint directly.

Add this to your MCP configuration to connect:

{
  "mcpServers": {
    "mu-micro-mu": {
      "url": "https://micro.mu/mcp"
    }
  }
}

Documentation

View on GitHub

From the project's GitHub README.

Mu

The runtime for a personal assistant

Overview

Mu is a runtime that integrates agents, tools and services along side your calendar, email and other events like morning brief and evening reading. It supports a full SMTP server, XMPP, WhatsApp and SMS via twilio.

Features

Open runtime - Single Go binary you can run yourself anywhere
Many clients - Interact via PWA, API, SMS, XMPP and WhatsApp
Integrations - Connect your google mail, calendar and more
Tools included - Comes with 30+ built-in tools (may require API keys)

Navigation

A bit about the navigation

Home - overview and exploration. Also includes a feed
Inbox - single place for all interaction and notifications
Agents - chat or create new agents with your own instructions
Services - interact with the tools the agents have access to

Home

A place to view and do things e.g prompt, see what's happening, etc. Includes a Feed tab news and world events.

Inbox

Connect from various places and it all goes in one inbox.

Protocol	Info
HTTP	Start a conversation or reopen one from Inbox.
SMTP	Send a message to `agent@your-domain` from your verified email address
SMS	Verify your phone number in Account, then text the configured number.
XMPP	Connect with your account and a Chat token from Client access, then message the agent.
WhatsApp	Like SMS use a verified phone number to message agents and interact.

Agents

Micro is the default agent. Agents have instructions and a set of tools. Services provide those tools: mail, files, calendar, search, weather, notes, shell, and more. You ask for an outcome; the agent chooses the tools.

Services

Complete standalone services that agents can use as tools or you can browse with. For example a complete Mail client and server. Web search via brave. News aggregation, headlines and summary via RSS. Video search via YouTube. All behind one MCP interface.

Install

curl -fsSL https://raw.githubusercontent.com/micro/mu/main/install.sh | sh
~/.local/bin/mu --serve --address 127.0.0.1:8080

See Install Micro for the quick start.

Optional documentation covers hosting, configuration, mail and development.

Web

Open http://localhost:8080 to create your account and choose an AI provider.

The web app can be installed on desktop or mobile as a progressive web app (PWA).

Clients

Native and protocol clients provide direct agent use. See the client map and Android voice and text client.

CLI

The binary acts as a client. It defaults to the hosted instance; set MU_URL or use mu login https://your.host for your own server.

mu ask "What needs my attention?"
mu inbox list
mu help

API

curl "$MU_URL/agent" \
  -H "Authorization: Bearer $MU_TOKEN" \
  -H 'Content-Type: application/json' \
  -d '{"prompt":"What needs my attention?"}'

The response includes text and thread; send the thread identifier back to continue. Requests and credentials belong in request bodies and headers. A separately configured x402 host provides paid service calls.

Commercial

If you want to run your own for commercial use please reach out for licensing terms and conditions. Fees are applicable.

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4.8

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