Truffle Domain Checker MCP Server

A Model Context Protocol (MCP) server that provides domain availability checking capabilities. Perfect for product name research and brand validation.

Features

• Single Domain Check: Check availability of a specific domain
• Batch Domain Check: Check multiple domains simultaneously
• Domain Variations: Check a base name across multiple TLDs
• Dual Verification: Uses both WHOIS lookups and DNS resolution
• Async Operations: Non-blocking concurrent domain checks

Installation

Using uvx (recommended)

uvx --from git+https://github.com/truffle-ai/mcp-servers --subdirectory src/domain-checker truffle-domain-checker-mcp

Using uv

uv add git+https://github.com/truffle-ai/mcp-servers --subdirectory src/domain-checker

From source

git clone https://github.com/truffle-ai/mcp-servers.git
cd mcp-servers/src/domain-checker
uv sync
uv run truffle-domain-checker-mcp

Usage

The server provides three main tools:

check_domain(domain: str)

Check if a single domain is available for registration.

check_multiple_domains(domains: List[str])

Check availability for multiple domains at once. Great for comparing product name options.

check_domain_variations(base_name: str, extensions: List[str] = None)

Check a base name across multiple TLD extensions (.com, .net, .org, .io, .app, .dev, .tech by default).

Domain Status Indicators

• ✅ LIKELY AVAILABLE: Domain appears to be unregistered
• ❌ NOT AVAILABLE: Domain is registered and in use
• ❓ UNCLEAR: Mixed signals, manual verification recommended

Configuration with MCP Clients

Claude Desktop

Add to your claude_desktop_config.json:

{
  "mcpServers": {
    "domain-checker": {
      "command": "uvx",
      "args": [
        "--from",
        "git+https://github.com/truffle-ai/mcp-servers",
        "--subdirectory",
        "src/domain-checker", 
        "truffle-domain-checker-mcp"
      ],
      "env": {
        "MCP_TRANSPORT": "stdio"
      }
    }
  }
}

Saiki

Add to your Saiki configuration:

mcp_servers:
  - name: domain-checker
    command: uvx
    args:
      - --from
      - git+https://github.com/truffle-ai/mcp-servers
      - --subdirectory
      - src/domain-checker
      - truffle-domain-checker-mcp
    env:
      MCP_TRANSPORT: stdio

Examples

Single Domain Check

User: Is myawesomeapp.com available?
Assistant: [Uses check_domain("myawesomeapp.com")]

Multiple Domain Check

User: Check availability for myapp.com, myapp.io, and myapp.dev
Assistant: [Uses check_multiple_domains(["myapp.com", "myapp.io", "myapp.dev"])]

Domain Variations

User: Check all major extensions for "brandname"
Assistant: [Uses check_domain_variations("brandname")]

Dependencies

• fastmcp>=0.1.0 - FastMCP framework
• python-whois>=0.8.0 - WHOIS lookups
• dnspython>=2.4.0 - DNS resolution
• uvicorn>=0.23.0 - HTTP server support

License

MIT - See LICENSE for details.

Contributing

Contributions welcome! Please see CONTRIBUTING.md for guidelines.