Port Reference Guide

Network REST API MCP

Return well-known network ports that match a port number, service name, protocol, or category, with a security note (safe / caution / insecure) for each. Call with no filters to list every port in the reference table.

This page documents the MCP tool findutils:port_reference_guide. See the REST reference →

Use in the browser View as Markdown

Call it over MCP

Tool name findutils:port_reference_guide · no API keys · 120 requests/min per IP

Claude Code

claude mcp add findutils --transport http https://mcp.findutils.com/

Claude Desktop — claude_desktop_config.json

{
  "mcpServers": {
    "findutils": {
      "url": "https://mcp.findutils.com/"
    }
  }
}

Raw JSON-RPC (any MCP client) — verified example

curl -X POST https://mcp.findutils.com/ \
  -H "Content-Type: application/json" \
  -d '{
    "jsonrpc": "2.0",
    "id": 1,
    "method": "tools/call",
    "params": {
      "name": "port_reference_guide",
      "arguments": {
        "port": 443
      }
    }
  }'

Input schema

Argument	Type	Required	Description
query	string	no	Free-text search over port number, service, description, and category, e.g. "ssh", "443", "database".
port	integer	no	Exact port number to look up (0-65535).
protocol	string (TCP \| UDP \| TCP/UDP)	no	Restrict to one transport protocol.
category	string (Web \| Email \| File Transfer \| Remote Access \| DNS & Network \| Database \| Security & VPN \| Messaging \| Development \| Container & Orchestration \| Media \| Proxy & Load Balancing \| Monitoring \| CI/CD \| Message Queues)	no	Restrict to one category.
limit	integer	no	Maximum number of entries to return (1-200). Default 50. Default: 50.

Example arguments (verified)

{
  "port": 443
}

Also a REST endpoint

The same tool answers plain HTTP at POST /api/tools/port-reference-guide/execute — no key, 60 requests/min.

Open the REST reference for Port Reference Guide →

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