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Whois, Dns, Ssl, And Domain Availability Lookups For Ai Assistan…

@Whoisjson

Repository

About Whois, Dns, Ssl, And Domain Availability Lookups For Ai Assistan…

WhoisJSON MCP Server exposes four domain intelligence tools directly inside Claude, Cursor, and Windsurf — no code required.

#whois#dns#ssl#domain#security#mcp#api#lookup#network#pentest#threat-intelligence#domain-availability#certificate

Config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "whoisjson": {
      "command": "npx",
      "args": [
        "-y",
        "@whoisjson/mcp-server"
      ],
      "env": {
        "WHOISJSON_API_KEY": "YOUR_API_KEY"
      }
    }
  }
}

Tools

4

WHOIS registration data for a domain (registrar, dates, contacts, nameservers…)

All DNS records for a domain (A, AAAA, MX, NS, TXT, CNAME, SOA, CAA, DMARC…)

SSL/TLS certificate details and validity for a domain

Check if a domain is available for registration

Overview

What is Whois, Dns, Ssl, And Domain Availability Lookups For Ai Assistants?

An MCP server that integrates with the WhoisJSON API to provide WHOIS, DNS, SSL, and domain availability lookup tools for AI assistants. It is intended for developers and users who need domain intelligence within AI chat interfaces.

How to use Whois, Dns, Ssl, And Domain Availability Lookups For Ai Assistants?

Install globally via npm install -g @whoisjson/mcp-server or run directly with npx @whoisjson/mcp-server. Configure your WhoisJSON API key as the environment variable WHOISJSON_API_KEY in your MCP client’s configuration file (e.g., Claude Desktop, Cursor, or Windsurf). The AI assistant can then invoke the exposed tools.

Key features of Whois, Dns, Ssl, And Domain Availability Lookups For Ai Assistants

  • whois_lookup: retrieve WHOIS registration data for a domain
  • dns_lookup: fetch all DNS records for a domain
  • ssl_check: inspect SSL/TLS certificate details and validity
  • domain_availability: check if a domain is available for registration

Use cases of Whois, Dns, Ssl, And Domain Availability Lookups For Ai Assistants

  • Verify domain ownership and registration details via WHOIS lookup
  • Troubleshoot DNS configuration by fetching all record types
  • Assess SSL certificate health and expiration for a domain
  • Determine domain availability for new registrations or purchases
  • Integrate domain intelligence into AI-powered support or research workflows

FAQ from Whois, Dns, Ssl, And Domain Availability Lookups For Ai Assistants

What tools does this server provide?

It exposes four tools: whois_lookup, dns_lookup, ssl_check, and domain_availability.

What are the prerequisites to use this server?

You need Node.js version 18 or later and a WhoisJSON API key, which you can obtain by signing up at whoisjson.com.

How do I install and configure this server?

Install via npm install -g @whoisjson/mcp-server or run with npx. Set the WHOISJSON_API_KEY environment variable, then add the server configuration to your MCP client’s config file (examples are provided for Claude Desktop, Cursor, and Windsurf).

How do I run this server locally for development?

Clone the repository, run npm install, npm run build, then start with WHOISJSON_API_KEY=your_key npm start.

Which MCP clients are supported?

The README includes configuration instructions for Claude Desktop, Cursor, and Windsurf.

Frequently asked questions

What tools does this server provide?

It exposes four tools: `whois_lookup`, `dns_lookup`, `ssl_check`, and `domain_availability`.

What are the prerequisites to use this server?

You need Node.js version 18 or later and a WhoisJSON API key, which you can obtain by signing up at [whoisjson.com](https://whoisjson.com).

How do I install and configure this server?

Install via `npm install -g @whoisjson/mcp-server` or run with `npx`. Set the `WHOISJSON_API_KEY` environment variable, then add the server configuration to your MCP client’s config file (examples are provided for Claude Desktop, Cursor, and Windsurf).

How do I run this server locally for development?

Clone the repository, run `npm install`, `npm run build`, then start with `WHOISJSON_API_KEY=your_key npm start`.

Which MCP clients are supported?

The README includes configuration instructions for Claude Desktop, Cursor, and Windsurf.

Comments

Basic information

Category

Developer Tools

Transports

stdio

Author

Whoisjson

Submitted by

WhoisJson

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