domain-intel

An MCP server that gives AI agents real-time domain intelligence — DNS records, WHOIS registration data, SSL certificate status, and domain availability checks.

No API keys required. All lookups use native protocols (DNS, WHOIS over TCP, TLS handshakes) with zero external dependencies.

Tools

dns_records

Look up DNS records for any domain. Returns A, AAAA, MX, TXT, NS, CNAME, and SOA records. Optionally filter to specific record types.

whois_lookup

Query WHOIS registration data. Returns registrar, creation/expiry dates, nameservers, and registrant information. Supports .com, .net, .org, .io, .dev, .app, .co, .me, .ai, .xyz, .info, and more.

ssl_check

Inspect the SSL/TLS certificate for a domain. Returns issuer, validity dates, days until expiry, fingerprint, and subject alternative names. Useful for monitoring cert expiration or verifying HTTPS configuration.

check_availability

Check whether a domain is available for registration. Uses a two-phase approach: a fast DNS lookup followed by WHOIS confirmation for accuracy.

Quick Start

Run directly with npx — no installation needed:

npx domain-intel

Or install globally:

npm install -g domain-intel
domain-intel

Usage with Claude Desktop

Add this to your Claude Desktop configuration file:

macOS: ~/Library/Application Support/Claude/claude_desktop_config.json Windows: %APPDATA%\Claude\claude_desktop_config.json

{
  "mcpServers": {
    "domain-intel": {
      "command": "npx",
      "args": ["-y", "domain-intel"]
    }
  }
}

Restart Claude Desktop. You can now ask things like:

• "Look up the DNS records for stripe.com"
• "When does github.com's SSL certificate expire?"
• "Is cool-startup-name.com available?"
• "Who registered openai.com and when does it expire?"

Usage with Claude Code

claude mcp add domain-intel -- npx -y domain-intel

Usage with Cursor

Add to your .cursor/mcp.json:

{
  "mcpServers": {
    "domain-intel": {
      "command": "npx",
      "args": ["-y", "domain-intel"]
    }
  }
}

Testing with MCP Inspector

npx @modelcontextprotocol/inspector npx -y domain-intel

Development

git clone https://github.com/jason-shprintz/mcp-services.git
cd mcp-services/packages/domain-intel
npm install
npm run build
npm start

License

ISC