Offensive Security Toolkit MCP server

MCP Server is a backend service that powers the Model Context Protocol, allowing Claude AI to securely access data, call tools, and execute tasks. It enables AI models to interact with external services like monitoring tools, databases, and analysis engines while maintaining controlled access to system resources.

Installation

Installing MCP CLI and SDK

To get started with MCP, install the Python SDK using pip:

pip install modelcontextprotocol

Setting Up Claude Desktop

1. First, download and install Claude Desktop from the official website: https://www.anthropic.com/index/claude-desktop

2. After installation, you'll need to configure Claude to connect with your MCP server:

   For macOS/Linux:

   nano ~/Library/Application\ Support/Claude/claude_desktop_config.json
   

   For Windows:

   notepad %AppData%\Claude\claude_desktop_config.json
   

3. Add your MCP server configuration to the JSON file:

   {
     "mcpServers": {
       "my-wazuh-agent": {
         "command": "/full/path/to/python",
         "args": [
           "mcp_wazuh_server.py"
         ]
       }
     }
   }
   

4. Save the file and restart Claude Desktop. When configured correctly, you'll see the connector icon (⚡) for prompts and the tools icon (🛠) for tool invocation in the Claude interface.

Usage

Testing Your MCP Server Locally

Before connecting your MCP server to Claude, you can test it locally using the MCP Inspector:

npx @modelcontextprotocol/inspector python mcp_wazuh_server.py

This command launches a local web interface that allows you to test @mcp.tool() and @mcp.prompt() functionality before integrating with Claude.

Using MCP with Claude

Once your server is properly configured and connected to Claude Desktop, you can:

1. Use the connector icon (⚡) to create prompts that can access external resources
2. Use the tools icon (🛠) to invoke specific tools you've defined in your MCP server

Potential Use Cases

The MCP server can be configured to support various cybersecurity workflows:

• Security Log Analysis: Connect Claude to Wazuh, Suricata, or Zeek logs
• Threat Hunting: Create workflows that analyze and correlate security data
• Automated Reporting: Generate incident reports from security tool outputs
• Interactive Training: Create cybersecurity training simulations

Each use case requires specific configuration of your MCP server to expose the relevant tools and resources to Claude.

Additional Resources

For more detailed documentation on setting up and using MCP servers, visit: https://modelcontextprotocol.io/quickstart/server

The FastMCP library provides additional functionality for creating MCP servers: https://github.com/jlowin/fastmcp

How to install this MCP server

For Claude Code

To add this MCP server to Claude Code, run this command in your terminal:

claude mcp add-json "offensive-mcp-ai" '{"command":"python","args":["mcp_wazuh_server.py"]}'

See the official Claude Code MCP documentation for more details.

For Cursor

There are two ways to add an MCP server to Cursor. The most common way is to add the server globally in the ~/.cursor/mcp.json file so that it is available in all of your projects.

If you only need the server in a single project, you can add it to the project instead by creating or adding it to the .cursor/mcp.json file.

Adding an MCP server to Cursor globally

To add a global MCP server go to Cursor Settings > Tools & Integrations and click "New MCP Server".

When you click that button the ~/.cursor/mcp.json file will be opened and you can add your server like this:

{
    "mcpServers": {
        "offensive-mcp-ai": {
            "command": "python",
            "args": [
                "mcp_wazuh_server.py"
            ]
        }
    }
}

Adding an MCP server to a project

To add an MCP server to a project you can create a new .cursor/mcp.json file or add it to the existing one. This will look exactly the same as the global MCP server example above.

How to use the MCP server

Once the server is installed, you might need to head back to Settings > MCP and click the refresh button.

The Cursor agent will then be able to see the available tools the added MCP server has available and will call them when it needs to.

You can also explicitly ask the agent to use the tool by mentioning the tool name and describing what the function does.

For Claude Desktop

To add this MCP server to Claude Desktop:

1. Find your configuration file:

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

2. Add this to your configuration file:

{
    "mcpServers": {
        "offensive-mcp-ai": {
            "command": "python",
            "args": [
                "mcp_wazuh_server.py"
            ]
        }
    }
}

3. Restart Claude Desktop for the changes to take effect