Domain MCP Server

A Model Context Protocol (MCP) server for checking domain availability using WHOIS/RDAP lookups.

Features

• is_domain_registered: Check if a specific domain name is registered
• check_word_in_tlds: Check if a word is available across multiple common TLDs

Usage

MCP configuration

To run the Domain MCP server, you need to configure it in your MCP environment:

{
  "mcpServers": {
    "domain-mcp": {
      "command": "npx",
      "args": ["@kolontsov/domain-mcp"]
    }
  }
}

Tools

is_domain_registered

Check if a specific domain name is registered.

Parameters:

• domain (string): The full domain name to check (e.g., "example.com")

Returns:

• registered (boolean): Whether the domain is registered
• registrar (string): The registrar name (if available)
• created (date): Registration date (if available)
• expires (date): Expiration date (if available)

check_word_in_tlds

Check if a word is available across multiple common TLDs.

Parameters:

• word (string): The word/name to check across TLDs (e.g., "mycompany")
• tlds (array, optional): Array of TLDs to check. If not provided, will check common TLDs

Returns:

• summary: Overview of results (total checked, available, registered, errors)
• available_domains: List of available domains
• registered_domains: List of registered domains with details
• errors: Any domains that couldn't be checked

Dependencies

• @cleandns/whois-rdap: For WHOIS/RDAP lookups (thanks!)
• @modelcontextprotocol/sdk: MCP SDK for server implementation

License

This project is licensed under the MIT License. Feel free to modify and use it as per your needs.

No warranty is provided; use at your own risk.