nmap-mcp-server

nmap-mcp-server

MCP server that wraps the nmap CLI to let agents run network scans (ping sweeps, TCP/UDP/service/OS scans, vulnerability and script scans, stealth and timing scans) and returns structured JSON results parsed from nmap XML output, with target validation and timeouts.

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README

agenticAI — MCP Tool Servers

A pair of Model Context Protocol (MCP) servers that expose useful tools to LLM agents (e.g. Claude, or any MCP-compatible client) over stdio, built with the official Python mcp[cli] SDK and FastMCP.

Servers

nmap-server.py — Network scanning tools

Wraps the nmap CLI as a set of async MCP tools, letting an agent run network scans, parse the XML output, and get back structured JSON. Includes target validation (IP / CIDR / hostname regex) before any command is executed, and a 10-minute timeout on every scan.

Exposed tools:

Tool Purpose
nmap_ping_sweep Discover live hosts on a network
nmap_tcp_scan TCP connect/SYN scan over a port range
nmap_udp_scan UDP scan of common service ports
nmap_service_scan Service/version detection
nmap_os_detection OS fingerprinting
nmap_aggressive_scan Combined OS/version/script/traceroute scan
nmap_vuln_scan NSE vulnerability scripts
nmap_script_scan Run a specific NSE script
nmap_default_scripts Run nmap's default NSE script set
nmap_stealth_scan SYN stealth scan
nmap_timing_scan Scan with a chosen timing template (T0–T5)
nmap_top_ports Scan the N most common ports
nmap_custom_scan Pass arbitrary nmap flags

Results are parsed from nmap's XML output into structured summaries (open ports, services, host state, etc.) rather than raw text.

todo-mcp.py — Minimal task-list demo server

A small reference server (four tools: count_tasks, show_tasks, add_task, search_tasks) used to demonstrate the basic MCP tool pattern before building the more complex nmap server.

Setup

Requires Python 3.11+ and uv.

uv sync

Run a server directly:

uv run nmap-server.py
uv run todo-mcp.py

Or point an MCP-compatible client (Claude Desktop, etc.) at either script as a stdio server.

Note: nmap-server.py shells out to a locally installed nmap binary — only run scans against hosts/networks you're authorised to test.

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