Kastell MCP Server: Install & Setup

Install Kastell in Claude Code

Claude Code

claude mcp add kastell -- npx -y kastell

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "kastell": {
      "command": "npx",
      "args": [
        "-y",
        "kastell"
      ]
    }
  }
}

Frequently asked questions

What does the Kastell MCP server do?

Server security auditing and hardening (SSH, firewall, Docker, TLS) with CIS/PCI-DSS/HIPAA mapping, fleet management and forensic evidence collection.

Is the Kastell MCP server free?

The server is free, but you will likely need an account. The server itself is free, but it connects to a service that needs an account or API key, which may have paid tiers. Check the provider for current pricing.

Does Kastell run locally or remotely?

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

How do I add Kastell to Claude Code?

Run: claude mcp add kastell -- npx -y kastell

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