Whois MCP

Model Context Protocol server for whois lookups.

Cursor IDE Demo

https://github.com/user-attachments/assets/57a82adc-3f30-453f-aabd-7138c2e6a21d

Claude Desktop Demo

https://github.com/user-attachments/assets/d30a1f45-fdaf-4280-80f2-d5d4fc9743b1

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:

npx -y @bharathvaj/whois-mcp@latest

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:

{
  "mcpServers": {
    "whois": {
      "command": "npx",
      "args": [
        "-y",
        "@bharathvaj/whois-mcp@latest"
      ]
    }
  }
}

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.

{
  "mcpServers": {
    "whois": {
      "command": "npx",
      "args": [
        "-y",
        "@bharathvaj/whois-mcp@latest"
      ]
    }
  }
}

The whois capabilities will be available to Roo Code's AI agents

Development

# Install dependencies
pnpm install

# Build
pnpm build

Debugging the Server

To debug your server, you can use the MCP Inspector.

First build the server

pnpm build

Run the following command in your terminal:

# Start MCP Inspector and server with all tools
npx @modelcontextprotocol/inspector node dist/index.js

License

MIT

You must be authenticated.

security – no known vulnerabilities

license - permissive license

quality - confirmed to work

remote-capable server

The server can be hosted and run remotely because it primarily relies on remote services or has no dependency on the local environment.

Tools

A Model Context Protocol server that allows AI agents to perform WHOIS lookups, enabling users to directly ask the AI about domain availability, ownership, registration details, and other domain information.

Related Resources

Reddit Discussion about this server

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View all related MCP servers

Whois MCP

Whois MCP

Overview

Available Tools

Using with Cursor

Using with Roo Code

Development

Debugging the Server

License

Tools

Related Resources

Related MCP Servers

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Notion MCP Server

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