WhoisJSON

io.github.Whoisjson/mcp-server

WHOIS, DNS, SSL, and domain availability lookups for AI assistants

Connect this server

Add this to your MCP client config — claude_desktop_config.json (Claude Desktop) or .cursor/mcp.json (Cursor).Suits: Claude Desktop · Cursor.

{
  "mcpServers": {
    "mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@whoisjson/mcp-server@1.0.3"
      ],
      "env": {
        "WHOISJSON_API_KEY": "<your WHOISJSON_API_KEY>"
      }
    }
  }
}
Environment variables
  • WHOISJSON_API_KEYrequiredsecretYour WhoisJSON API key from whoisjson.com/dashboard

A starting point — check the repository for exact arguments and setup. Restart your client after editing the config.

Category
Developer Tools
Version
1.0.3
Registry
active
Published
4/9/2026
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WhoisJSON — listed on Serverdex

HTML — for your website

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Markdown — for your README

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Nice for visibility, but GitHub marks README links nofollow, so it doesn't pass authority. Use the HTML badge on your site as well.