MCP-Kali-Server

MCP.Pizza Chef: Wh0am123

Security testers point this at a Kali machine so an assistant can run the usual toolkit — Nmap, sqlmap, Nikto, Hydra, John the Ripper, WPScan and plain terminal commands — and read the results back. It is built for capture-the-flag practice and authorised penetration testing, and the authors are explicit that misuse is on you. Running it means installing a small program on the Kali box and, ideally, tunnelling to it over SSH rather than exposing it to the network.

Coding
Other

Use This MCP server To

Scan a machine I own and explain what is open Work through a capture-the-flag challenge step by step Run a website check and summarize the findings Look for weak passwords on my own test server Let the assistant pick the right tool for a scan

README

MCP Kali Server

MCP Kali Server (MKS) is a lightweight API bridge that connects MCP clients (e.g: Claude Desktop or 5ire) to the API server which allows executing commands on a Linux terminal.

This MCP is able to run terminal commands as well as interacting with web applications using:

  • Dirb
  • enum4linux
  • gobuster
  • Hydra
  • John the Ripper
  • Metasploit-Framework
  • Nikto
  • Nmap
  • sqlmap
  • WPScan
  • As well as being able to execute raw commands.

As a result, this is able to perform AI-assisted penetration testing and solving CTF challenges in real time.

Articles Using This Tool

How MCP is Revolutionizing Offensive Security

👉 How MCP is Revolutionizing Offensive Security


🔍 Use Case

The goal is to enable AI-driven offensive security testing by:

  • Letting the MCP interact with AI endpoints like OpenAI, Claude, DeepSeek, Ollama or any other models.
  • Exposing an API to execute commands on a Kali machine.
  • Using AI to suggest and run terminal commands to solve CTF challenges or automate recon/exploitation tasks.
  • Allowing MCP apps to send custom requests (e.g. curl, nmap, ffuf, etc.) and receive structured outputs.

Here are some example (using Google's AI gemini 2.0 flash):

Example solving a web CTF challenge from RamadanCTF

Solving.Web.CTF.Challenge.mp4

Trying to solve machine "code" from HTB

Testing.on.HTB.Machine.Code.mp4

🚀 Features

  • 🧠 AI Endpoint Integration: Connect your Kali to any MCP of your liking such as Claude Desktop or 5ier.
  • 🖥️ Command Execution API: Exposes a controlled API to execute terminal commands on your Kali Linux machine.
  • 🕸️ Web Challenge Support: AI can interact with websites and APIs, capture flags via curl and any other tool AI the needs.
  • 🔐 Designed for Offensive Security Professionals: Ideal for red teamers, bug bounty hunters, or CTF players automating common tasks.

🛠️ Installation and Running

On your Kali Machine

sudo apt install mcp-kali-server
kali-server-mcp

Otherwise for bleeding edge:

git clone https://github.com/Wh0am123/MCP-Kali-Server.git
cd MCP-Kali-Server
python3 -m venv .venv
source .venv/bin/activate
pip install -r requirements.txt
./server.py

Command Line Options:

  • --ip <address>: Specify the IP address to bind the server to (default: 127.0.0.1 for localhost only)
    • Use 127.0.0.1 for local connections only (secure, recommended)
    • Use 0.0.0.0 to allow connections from any network interface (very dangerous; use with caution)
    • Use a specific IP address to bind to a particular network interface
  • --port <port>: Specify the port number (default: 5000)
  • --debug: Enable debug mode for verbose logging

Examples:

# Run on localhost only (secure, default)
./server.py

# Run on all interfaces (less secure, useful for remote access)
./server.py --ip 0.0.0.0

# Run on a specific IP and custom port
./server.py --ip 192.168.1.100 --port 8080

# Run with debug mode
./server.py --debug

On your MCP client machine

This can be local (on the same Kali machine) or remote (another Linux machine, Windows or macOS).

If you're running the client and server on the same Kali machine (aka local), run either:

## OS package
kali-server-mcp --server http://127.0.0.1:5000

# ...OR...

## Bleeding edge
./client.py --server http://127.0.0.1:5000

If separate machines (aka remote), create an SSH tunnel to your MCP server, then launch the client:

## Terminal 1 - Replace `LINUX_IP` with Kali's IP
ssh -L 5000:localhost:5000 user@LINUX_IP

## Terminal 2
git clone https://github.com/Wh0am123/MCP-Kali-Server.git
cd MCP-Kali-Server
python3 -m venv .venv
source .venv/bin/activate
pip install -r requirements.txt
./client.py --server http://127.0.0.1:5000

If you're openly hosting the MCP Kali server on your network (server.py --IP...), you don't need the SSH tunnel (but we do recommend it!) NOTE: ⚠️(THIS IS STRONGLY DISCOURAGED. WE RECOMMEND SSH)⚠️.

./client.py --server http://LINUX_IP:5000
Configuration for Claude Desktop:

Edit:

  • macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
  • Windows: %APPDATA%\Claude\claude_desktop_config.json

Example MCP-Kali-Server.json

Configuration for 5ire Desktop Application:
  • Simply add an MCP with the command python3 /absolute/path/to/client.py --server http://LINUX_IP:5000 and it will automatically generate the needed configuration files.

🔮 Other Possibilities

There are more possibilities than described since the AI model can now execute commands on the terminal. Here are some examples:

  • Memory forensics using Volatility

    • Automating memory analysis tasks such as process enumeration, DLL injection checks, and registry extraction from memory dumps.
  • Disk forensics with SleuthKit

    • Automating analysis from disk images, timeline generation, file carving, and hash comparisons.

⚠️ Disclaimer:

This project is intended solely for educational and ethical testing purposes. Any misuse of the information or tools provided — including unauthorized access, exploitation, or malicious activity — is strictly prohibited.

The author assumes no responsibility for misuse.

MCP-Kali-Server FAQ

Which apps does it work in?
Claude Desktop is documented, and the 5ire desktop app is supported too. Any MCP-capable client should be able to connect.
Do I need a Kali Linux machine?
Yes. The tools it drives live on Kali, though another Linux box with the same tools installed will also work.
Is a paid key needed?
No key. You do have to start the small server program on the Kali machine and point your client at it.
Can I use this to test my own website for weaknesses?
Yes, that is the intended use, provided you own the site or hold written permission to test it.
Is it safe to leave running?
Treat it carefully. It can run any terminal command, so bind it to your own machine and reach it through an SSH tunnel.
How hard is setup?
Expect command line work: a package install or a code checkout, a Python environment, and an edit to your client's settings file.