WhoisLookup MCP Server: Install & Setup

Install WhoisLookup in Claude Code

Claude Code

claude mcp add --transport sse whoislookup https://whois.rjctdlabs.xyz/sse

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "whoislookup": {
      "url": "https://whois.rjctdlabs.xyz/sse"
    }
  }
}

Frequently asked questions

What does the WhoisLookup MCP server do?

Domain WHOIS, DNS records, SSL certificates, and availability checks.

Is the WhoisLookup MCP server free?

The server is free, but you will likely need an account. The server itself is free, but it connects to a service that needs an account or API key, which may have paid tiers. Check the provider for current pricing.

Does WhoisLookup run locally or remotely?

Remote. Hosted by the provider. You connect with a URL, nothing to install.

How do I add WhoisLookup to Claude Code?

Run: claude mcp add --transport sse whoislookup https://whois.rjctdlabs.xyz/sse

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