# Mitsu (MCP server)

> Mitsu is an MCP server that adds tools to AI assistants such as Claude Desktop, Claude Code and Cursor. Meet Mitsu, your chibi red-team operator. It has 535 GitHub stars, is released under the MIT license and runs locally with uvx mitsu.

An agentic pentest framework that can take an engagement from recon through post-exploitation on her own. Mitsu is an agentic framework client for authorized penetration-testing workflows. Given an in-scope target and objective, she can carry out reconnaissance, enumerate hosts and services, research vulnerabilities and exploits, validate findings, and continue into post-exploitation.

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/ARCANGEL0/Mitsu |
| GitHub stars | 535 |
| License | MIT |
| Language | Python |
| Transport | stdio |
| Packages | pypi: mitsu |
| Remote URL | none |
| Needs API key | no |
| Official | no |
| Works with | Claude Desktop, Claude Code, Cursor, VS Code |
| Category | Other |
| Latest release | v1.4.21 (Oct 24, 2026) |
| Last commit | Oct 23, 2026 |

## Install

### Claude Desktop (claude_desktop_config.json)

```json
{
  "mcpServers": {
    "mitsu": {
      "command": "uvx",
      "args": [
        "mitsu"
      ]
    }
  }
}
```

Settings > Developer > Edit Config. macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\. Restart Claude Desktop afterwards.

### Claude Code

```sh
claude mcp add --transport stdio mitsu -- uvx mitsu
```

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

```json
{
  "mcpServers": {
    "mitsu": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "mitsu"
      ]
    }
  }
}
```

Project file; use ~/.cursor/mcp.json to enable it in every project.

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

```json
{
  "servers": {
    "mitsu": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "mitsu"
      ]
    }
  }
}
```

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

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