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 HTTP endpoint POST /api/tools/port-reference-guide/execute. See the MCP reference →
Call it over REST
POST https://api.findutils.com/api/tools/port-reference-guide/execute · no API keys · 60 requests/min per IP
Execute — verified arguments
curl -X POST https://api.findutils.com/api/tools/port-reference-guide/execute \
-H "Content-Type: application/json" \
-d '{
"port": 443
}'Parameter schema for this endpoint
curl https://api.findutils.com/api/tools/port-reference-guideInput 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 an MCP tool
Claude, Cursor, and any MCP client can call this tool as
findutils:port_reference_guide after one connect command.
Connect once
claude mcp add findutils --transport http https://mcp.findutils.com/More Network tools
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