MCPs › Data & APIs › WhoisXML API
The WhoisXML API MCP server brings WhoisXML's full data catalog to your AI client. Investigate suspicious domains, map subdomain footprints, look up IP geolocation, query historical WHOIS records, and check threat intelligence — all from a chat session. Tool surface: WHOIS, Domain Availability, Domain Reputation, Categorization, IP Geolocation, IP Netblocks, Reverse IP, DNS Lookup, Subdomains, WHOIS History, Reverse WHOIS, threat intelligence, and more — 32 read-only tools backed by WhoisXML API. Built by WhoisXML API — domain, IP, and DNS intelligence provider since 2010. Connect with your WhoisXML API key via OAuth; usage is billed against your own WhoisXML account. New accounts include free trial credits.
Not monetized yet
Turn WhoisXML API’s tool calls into revenue: one disclosed sponsored slot, 70% revenue share, fail-open by design.
Install WhoisXML API
For anyone using WhoisXML API — no Lulu account neededclaude mcp add --transport http whoisxml-api https://mcp-whoisxmlapi--whoisxmlapi.run.tools
Real-time weather for any city, built on the lulu-ads widget gallery. First-party, free forever.
View server →FAQ
Run: claude mcp add --transport http whoisxml-api https://mcp-whoisxmlapi--whoisxmlapi.run.tools
Yes — it’s a remote MCP server, so no local install is needed.
ChatGPT: Settings → Connectors → Advanced → Developer mode → Add connector, then paste https://mcp-whoisxmlapi--whoisxmlapi.run.tools.
Claude.ai: Settings → Connectors → Add custom connector, then paste the same URL.
Unrated out of 100, computed from cross-registry traction signals (installs, stars, registry presence) — never influenced by sponsorship.
Similar servers
Works well together
Your server?
This is for the person who owns WhoisXML API — adds Lulu Ads to your own code. Not the install steps above, those are for your users.
Copies a ready prompt: your coding agent installs the lulu-ads SDK, wires the slot, and applies the widget design guide.
or set up manually at getlulu.dev/publishers
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Managed hosting with monetization built in — waitlist.
[](https://getlulu.dev/mcps/whoisxml-api)