MCP server · Research

Domain Lookup MCP server

Your AI can look up who owns a domain name and when it was registered.

This is a small helper you connect to your AI so it can look up information about domain names, like example.com. It is handy if you check websites, chase down who owns a domain, or just want to know when a site was created. You ask your AI in normal words and it does the lookup for you.

What is an MCP server? The 30-second version

On its own, your AI can only chat. It cannot go and check a domain name for you. An MCP server is a small helper program that gives your AI a new skill or a connection to a service. This one connects your AI to domain name records, so when you ask about a domain, the AI can look it up and tell you what it found.

What this MCP server does

You ask your AI something like who owns example.com. The AI passes that question to this helper. The helper first asks an official domain directory called RDAP, and if that does not answer, it falls back to an older lookup system called WHOIS. The answer comes back to your AI, and your AI explains it to you in the chat.

Flow diagram: you ask your AI “Who owns example.com?”, the Domain Lookup MCP server connects it to Domain directory, and you get back who owns it and when it expires.

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What you can do with it

Look up who registered a domain name
Check when a domain was created and when it expires
See which company a domain is registered through
Find the name servers a domain uses
Check details for several domains one after another

Try asking your AI

“Who owns example.com?”
“When was openai.com registered and when does it expire?”
“What name servers does github.com use?”
“Look up the registration details for bbc.co.uk”

What it gives back to you

You get a plain answer in the chat, usually a short summary of the domain record. That can include the registrar, the registration and expiry dates, the name servers, and sometimes contact details if they are public. If the domain is not found or the lookup fails, your AI will tell you that instead.

Before you start

What you need

The Claude desktop app or another app that supports MCP servers
The Go programming language installed, so you can build the program
The domain-lookup-mcp program built on your computer from its source code

Good to know

It only reads public domain records, so it does not change anything, but the details it finds may be out of date or hidden for privacy.

Install it with your AI

Add Domain Lookup MCP server to your AI, no technical skills needed

You don't install anything by hand. You copy one prompt, paste it into an AI that can work on your computer, and it checks, installs and connects the server for you, asking you when it needs something.

Sign in to get the install prompt

Members get a ready-made prompt that lets the Claude desktop app check Domain Lookup MCP server, install it and connect it for them, step by step. You don't need any technical skills: you copy, paste and answer a few questions. Your connected AI can also find and install any of the 4,066 MCP servers here for you.