Subdomain Finder MCP MCP Tools

Subdomain Finder MCP exposes 4 tools. Each one has its own page with the configuration for every client that can run this server.

find_subdomains Read-only

find subdomains
resolve_subdomains Read-only

resolve subdomains
get_certificate_history Read-only

get certificate history
summarize_attack_surface

summarize attack surface

This list was read from the server itself, by connecting to it and calling tools/list on 11 November 2026. It is what the server actually exposes, not what its listing claims.

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.

Subdomain Finder MCP MCP server