What is Fastdomaincheck Mcp Server Python

fastdomaincheck-mcp-server-python is a domain availability check server implemented in Python using the Model Context Protocol (MCP). It allows users to check if single or multiple domain names are registered by utilizing WHOIS and DNS services.

Use cases

Use cases include checking the availability of domain names for new websites, verifying domain registrations for clients in web development, and integrating domain availability checks in e-commerce platforms.

How to use

To use fastdomaincheck-mcp-server-python, send a JSON request with an array of domain names to the check_domains endpoint. The server will respond with the registration status of each domain, indicating whether they are registered or available.

Key features

Key features include bulk domain registration status checking, dual verification using WHOIS and DNS, support for Internationalized Domain Names (IDN), concise output format, and built-in input validation and error handling.

Where to use

fastdomaincheck-mcp-server-python can be used in web hosting services, domain registration platforms, and any application that requires domain name availability checks.

FastDomainCheck MCP Server (Python)

This is a domain availability check server implemented using Python and the Model Context Protocol (MCP).
It provides MCP Tools to check if single or multiple domain names are already registered.

Features

• Bulk domain registration status checking
• Dual verification using WHOIS and DNS
• Support for IDN (Internationalized Domain Names)
• Concise output format
• Built-in input validation and error handling

Tool Documentation

check_domains

Check registration status for multiple domain names.

Input Format

{
  "domains": [
    "example.com",
    "test.com"
  ]
}

Parameters:

• domains: Array of strings containing domain names to check
  • Maximum length of 255 characters per domain
  • Maximum 50 domains per request
  • No empty domain names allowed

Output Format

{
  "results": {
    "example.com": {
      "registered": true
    },
    "test.com": {
      "registered": false
    }
  }
}

Response Fields:

• results: Object with domain names as keys and check results as values
  • registered: Boolean
    • true: Domain is registered
    • false: Domain is available

Error Handling

The tool will return an error in the following cases:

1. Empty domains list
2. More than 50 domains in request
3. Empty domain name
4. Domain name exceeding 255 characters
5. Result serialization failure

Error Response Format:

{
  "error": "Error: domains list cannot be empty"
}

Usage Examples

Check multiple domains:

Request

{
  "domains": [
    "example.com",
    "test123456.com"
  ]
}

Response

{
  "results": {
    "example.com": {
      "registered": true
    },
    "test123456.com": {
      "registered": false
    }
  }
}

MCP Server Settings

Configuring FastDomainCheck MCP in Claude Deskto

Modify your claude-desktop-config.json file as shown below

{
  "mcpServers": {
    "fastdomaincheck": {
      "command": "uvx",
      "args": [
        "fastdomaincheck-mcp-server"
      ]
    }
  }
}

Go Version Reference

go version

Contributing

Feel free to open issues or submit pull requests.

License

MIT License (You should add a LICENSE file, typically containing the MIT license text)