CyberMCP

An MCP (Model Context Protocol) server that gives Claude cybersecurity research tools.

Tools

cve_lookup

Look up any CVE by ID. Returns description, CVSS score, severity, vector string, and references.

Example: CVE-2021-44228 (Log4Shell)

ip_lookup

Geolocate an IPv4 or IPv6 address. Returns country, city, ISP, ASN, timezone, and proxy/VPN detection.

Example: 8.8.8.8

hash_check

Check a file hash (MD5, SHA-1, or SHA-256) against VirusTotal. Returns verdict, detection ratio, file type, and threat names.

Example: 44d88612fea8a8f36de82e1278abb02f (EICAR test file MD5)

Related MCP server: Risky Business MCP Server

Installation

cd cybermcp
pip install -r requirements.txt

Set up your VirusTotal API key:

cp .env.example .env
# Edit .env and add your VIRUSTOTAL_API_KEY

Get a free VirusTotal API key at https://www.virustotal.com/gui/join-us

Running the server

python main.py

Connecting to Claude Desktop

Add the following to your claude_desktop_config.json:

{
  "mcpServers": {
    "cybermcp": {
      "command": "python",
      "args": ["/absolute/path/to/cybermcp/main.py"]
    }
  }
}

Config file locations:

• macOS: ~/Library/Application Support/Claude/claude_desktop_config.json

• Windows: %APPDATA%\Claude\claude_desktop_config.json

Connecting to Claude Code (CLI)

claude mcp add cybermcp python /absolute/path/to/cybermcp/main.py

Project Structure

cybermcp/
├── main.py           # MCP server entry point
├── tools/
│   ├── __init__.py   # Exports all tools
│   ├── cve.py        # NVD CVE lookup
│   ├── ip_lookup.py  # ip-api.com geolocation
│   └── hash_check.py # VirusTotal hash analysis
├── .env.example      # API key template
├── requirements.txt
└── README.md