Public Suffix List

Wraps the Mozilla Public Suffix List with four straightforward tools: parse a domain into its subdomain, registrable domain, and public suffix components, or extract just the suffix or registrable portion. The list is cached for 24 hours, so you're not hitting Mozilla on every call. Useful when you're building URL parsers, cookie scope validators, or anything that needs to distinguish example.co.uk from co.uk without maintaining your own eTLD ruleset. Part of the Pipeworx gateway, which bundles 250+ data sources behind a single MCP endpoint. Runs over streamable HTTP, so no local process needed.