Mu

Name: Mu
Author: micro

by microversion 1.0.0i★ –iRuns in the cloud

Registry namemu.micro/mu

Install

Overview

Description from the maker (original English)

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

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs in the cloud
Transport: Streamable HTTP
Category: Docs, sheets & office work

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on the maker’s server: what you ask it goes through their server.
The registry lists no key to fill in.

You need

Runs in the cloudNothing to install; it connects over the internet

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Works in Claude on the web, desktop and mobile:

Open Settings → Connectors
Press Add custom connector
Paste the address below and press Add
If it asks you to sign in, sign in with the maker

https://micro.mu/mcp

Run this in your terminal

claude mcp add --transport http mu https://micro.mu/mcp

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

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

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "mu": {
      "type": "http",
      "url": "https://micro.mu/mcp"
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

ChatGPT connects only to servers on the internet:

Open ChatGPT on the web → Settings → Connectors (Apps)
Press Create or Add (some plans need Developer mode under Advanced first)
Paste the address below, give it a name and save
If it asks you to sign in, sign in with the maker

https://micro.mu/mcp

Menu names can differ slightly by plan and over time.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

We have not read this server’s tool list yet; we check endpoints in rotation.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026

✓ Pass
Maker matches the repo
The registry name was verified against the domain micro.mu (the registry checks domain ownership)
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
… Not checked yet
Endpoint responds
Not checked yet; we check endpoints in rotation
… Not checked yet
Sign-in with OAuth
Not checked yet; we check endpoints in rotation
… Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint

Compared with others in Docs, sheets & office worki

More stars than 0% of the other 2186 servers in this category
Published to the registry more recently than 23% of the other 2186 servers in this category
Basic checks equal to or better than 100% of the other 2186 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Mu safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.0.0) reached the registry 3 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: Agent-Native Calendar, Excel MCP Server, MCP Server for Excel

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Agent-Native Calendar

by BuilderIO

Agent-Native Google Calendar - manage events, sync, and public booking

Runs in the cloud★ 7,620MITUpdated 2 months ago

Install

Excel MCP Server

by haris-musa

Lets AI create and edit Excel files itself, including formulas, charts and PivotTables, without Excel installed.

Runs on your computer★ 4,276MITUpdated 6 days ago

Install

MCP Server for Excel

by sbroenne

Excel automation for AI - Sheets, Power Query, DAX, VBA, Tables, Ranges and more. Windows only.

Runs on your computer★ 847MITUpdated 3 days ago

Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

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.

Mu

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Docs, sheets & office worki

Common questions

Alternatives

Agent-Native Calendar

Excel MCP Server

MCP Server for Excel

README from the maker

Mu

Overview

Features

Navigation

Home

Inbox

Agents

Services

Install

Web

Clients

CLI

API

Commercial