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WhoisLookup

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

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

Remote (sse)
Claude Code 
claude mcp add --transport sse whoislookup 'https://whois.rjctdlabs.xyz/sse' --header 'X-API-Key: <API key from https://auth.rjctdlabs.xyz/dashboard>'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "whoislookup": {
            "type": "sse",
            "url": "https://whois.rjctdlabs.xyz/sse",
            "headers": {
                "X-API-Key": "<API key from https://auth.rjctdlabs.xyz/dashboard>"
            }
        }
    }
}

Frequently asked questions

What is WhoisLookup?

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

How do I install WhoisLookup?

It runs as a remote server. In Claude Code: claude mcp add --transport sse whoislookup 'https://whois.rjctdlabs.xyz/sse' --header 'X-API-Key: <API key from https://auth.rjctdlabs.xyz/dashboard>'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does WhoisLookup need an API key?

Yes. It expects X-API-Key, which you set in its configuration.

Who maintains WhoisLookup?

It is published by therealMrFunGuy. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.