# Mu (MCP server)

> Mu is an MCP server that adds productivity tools to AI assistants such as Claude Code, Cursor and VS Code. News, web search, mail, markets, weather, places, files, calendar, contacts. It has 436 GitHub stars, is released under the AGPL-3.0 license and runs as a remote server at https://micro.mu/mcp.

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.

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/micro/mu |
| GitHub stars | 436 |
| License | AGPL-3.0 |
| Language | Go |
| Transport | streamable-http |
| Packages | none (remote only) |
| Remote URL | https://micro.mu/mcp |
| Needs API key | no |
| Official | yes |
| Works with | Claude Code, Cursor, VS Code, Claude.ai, ChatGPT |
| Category | Productivity |
| Latest release | v2.13.0 (Oct 5, 2026) |
| Last commit | Oct 6, 2026 |
| MCP registry name | mu.micro/mu |

## Install

### Claude Desktop

```
Settings > Connectors > Add custom connector
URL: https://micro.mu/mcp
```

Remote servers are added as a custom connector, not in claude_desktop_config.json.

### Claude Code

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

### Cursor (.cursor/mcp.json)

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

### VS Code (.vscode/mcp.json)

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

Config formats checked against the official docs on 2026-10-07.

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