WHOIS Community

Frequently asked questions

What does the WHOIS MCP server do?

Whois MCP Model Context Protocol server for whois lookups. > /> > Cursor IDE Demo Claude Desktop Demo Overview This MCP server allows AI agents like Claude Desktop, Cursor, Windsurf,.. etc to perform WHOIS lookups and retrieve domain details. Purpose You can directly ask the AI to check if a domain is available, who owns it, when it was registered, and other important details. No need to go to browser and search. What is a WHOIS Lookup? A WHOIS lookup is the process of querying a WHOIS database to retrieve registration details about a domain name, IP address, or autonomous system. It helps users find out who owns a domain, when it was registered, when it expires, and other important details. What Information Can a WHOIS Lookup Provide? When you perform a WHOIS lookup, you can retrieve details such as: Domain Name – The specific domain queried Registrar Name – The company managing the domain registration (e.g., GoDaddy, Namecheap) Registrant Details – The name, organization, and contact details of the domain owner (unless protected by WHOIS privacy) Registration & Expiry Date – When the domain was registered and when it will expire Name Servers – The DNS servers the domain is using Domain Status – Active, expired, locked, or pending deletion Contact Information – Administrative, technical, and billing contacts (if not hidden) Available Tools Tool Description --------------------- ------------------------------------------ whois domain Looksup whois information about the domain whois tld Looksup whois information about the Top Level Domain (TLD) whois ip Looksup whois information about the IP whois as Looksup whois information about the Autonomous System Number (ASN) Using with Cursor Installation - Globally Run the MCP server using npx: In your Cursor IDE Go to Cursor Settings > MCP Click + Add New MCP Server Fill in the form: Name: Whois Lookup (or any name you prefer) Type: command Command: npx -y @bharathvaj/whois-mcp@latest Installation - Project-specific Add an .cursor/mcp.json file to your project: Usage Once configured, the whois tools will be automatically available to the Cursor AI Agent. You can: The tool will be listed under Available Tools in MCP settings Agent will automatically use it when relevant You can explicitly ask Agent to send notifications Using with Roo Code Access the MCP settings by clicking “Edit MCP Settings” in Roo Code settings or using the “Roo Code: Open MCP Config” command in VS Code's command palette. The whois capabilities will be available to Roo Code's AI agents Development Debugging the Server To debug your server, you can use the MCP Inspector. First build the server Run the following command in your terminal: License MIT

How do I install WHOIS?

Run the install command shown above, then paste the config for your client (Claude Desktop, Claude Code, Cursor, VS Code or Windsurf) into its MCP settings and restart the client.

Is WHOIS free to use?

The MCP server itself is free to install. The source is public on https://github.com/bharathvaj-ganesan/whois-mcp. Any third-party service it calls may require its own API key and account.

Which clients support WHOIS?

Any MCP-compatible client can use it, including Claude Desktop, Claude Code, Cursor, VS Code, Windsurf and custom agents.