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Whois Lookup

Source

Performs whois lookup against domain, IP, ASN and TLD.

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Overview

Whois Lookup is a tool that performs WHOIS lookups against domains, IP addresses, Autonomous System Numbers (ASN), and Top-Level Domains (TLD). It allows users to retrieve registration details about a domain name or IP address without needing to search through a browser.

To use Whois Lookup, you can install the MCP server using the command npx -y @bharathvaj/whois-mcp@latest. Once installed, you can configure it in your IDE (like Cursor or Roo Code) to access WHOIS information directly through AI agents.

  • Retrieve domain registration details including owner information, registration dates, and status. - Supports WHOIS lookups for domains, IPs, ASNs, and TLDs. - Integration with AI agents for seamless querying.
  1. Checking domain availability for new projects.
  2. Finding out who owns a specific domain.
  3. Retrieving registration and expiration dates for domains.
  4. Analyzing IP address ownership and details.

Add to your AI client

Use these steps to connect Whois Lookup in Cursor, Claude, VS Code, and other MCP-compatible apps. The same JSON appears in the Use with menu above for one-click copy.

Cursor

Add this to your .cursor/mcp.json file in your project root, then restart Cursor.

.cursor/mcp.json

{
  "mcpServers": {
    "whois-lookup-bharathvaj-ganesan": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-whois-lookup-bharathvaj-ganesan"
      ]
    }
  }
}

Claude Desktop

Add this server entry to the mcpServers object in your Claude Desktop config, then restart the app.

~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows)

{
  "mcpServers": {
    "whois-lookup-bharathvaj-ganesan": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-whois-lookup-bharathvaj-ganesan"
      ]
    }
  }
}

Claude Code

Add this to your project's .mcp.json file. Claude Code will detect it automatically.

.mcp.json (project root)

{
  "mcpServers": {
    "whois-lookup-bharathvaj-ganesan": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-whois-lookup-bharathvaj-ganesan"
      ]
    }
  }
}

VS Code (Copilot)

Add this to your .vscode/mcp.json file. Requires the GitHub Copilot extension with MCP support enabled.

.vscode/mcp.json

{
  "servers": {
    "whois-lookup-bharathvaj-ganesan": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-whois-lookup-bharathvaj-ganesan"
      ]
    }
  }
}

Windsurf

Add this to your Windsurf MCP config file, then restart Windsurf.

~/.codeium/windsurf/mcp_config.json

{
  "mcpServers": {
    "whois-lookup-bharathvaj-ganesan": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-whois-lookup-bharathvaj-ganesan"
      ]
    }
  }
}

Cline

Open Cline settings, navigate to MCP Servers, and add this server configuration.

Cline MCP Settings (via UI)

{
  "mcpServers": {
    "whois-lookup-bharathvaj-ganesan": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-whois-lookup-bharathvaj-ganesan"
      ]
    }
  }
}

FAQ

What information can I get from a WHOIS lookup?

You can retrieve details such as domain name, registrar name, registrant details, registration and expiry dates, name servers, and contact information.

Is there a limit to the number of lookups I can perform?

There may be rate limits imposed by WHOIS databases, but the tool itself does not limit the number of queries.

Can I use this tool for any domain?

Yes, you can perform lookups for any registered domain, but privacy settings may restrict access to certain registrant details.7:["$","div",null,{"className":"container mx-auto flex flex-col gap-4","children":["$L26","$L27",["$","$L28",null,{"currentProject":{"id":2046,"uuid":"36f27248-86e6-4e82-b201-6bc9554b7640","name":"Whois Lookup","title":"Whois Lookup","description":"Performs whois lookup against domain, IP, ASN and TLD.","avatar_url":null,"created_at":"2025-03-05T19:05:30.443+00:00","updated_at":"2025-03-23T14:55:36.673+00:00","status":"created","author_name":"bharathvaj-ganesan","author_avatar_url":null,"tags":"whois,domain-lookup,network-tools","category":"research-and-data","is_featured":false,"sort":1,"url":"https://github.com/bharathvaj-ganesan/whois-mcp","target":"_self","content":"$29","summary":"$2a","img_url":null,"type":null,"metadata":null,"user_uuid":"15830ec8-1c1c-4bac-8a30-7a823b34c2b6","tools":null,"sse_url":null,"sse_provider":null,"sse_params":null,"is_official":false,"server_command":null,"server_params":null,"server_config":null,"allow_call":false,"is_innovation":false,"is_dxt":false,"dxt_manifest":null,"dxt_file_url":null,"is_audit":false},"randomProjects":[],"currentServerKey":"$undefined"}]]}]