Domain Checker MCP Server

If you already use Domain Checker, the domain checker mcp server is the piece that lets your assistant work with it directly. A Model Context Protocol (MCP) server that checks domain name availability using WHOIS lookups and DNS resolution. Built with the modern FastMCP framework for easy setup and reliable domain availability checking.

What the server does

• ✅ Dual Verification: Uses both WHOIS and DNS resolution for accurate results
• 🚀 Async Operations: Non-blocking operations with proper timeout handling
• 📊 Batch Processing: Check multiple domains concurrently
• 🔍 Detailed Analysis: Provides comprehensive availability information

Available tools

The toolset is worth reading before you wire it up, because it tells you what the integration is really for:

• Prerequisites — The Prerequisites tool exposed by this server
• Setup — 1. Clone the repository bash git clone https://github.com/ajot/domain-checker-mcp-server.git cd domain-checker-mcp-server

Credentials and setup notes

• Python 3.8 or higher - pip package manager

Installation

Setup follows the usual MCP pattern — install or clone the server, register it in your client's configuration file, restart the client. The configuration blocks on this page cover the common clients.

Where it fits

Among the developer tooling options, the useful question is rarely "what can it do" but "what does it cost you to run" — permissions, credentials, and how much of your context its toolset consumes. Domain Checker's toolset — Prerequisites, Setup — is a fair guide to whether it matches your workflow. It is maintained by ajot; worth a glance at recent repository activity before you build anything load-bearing on it.

SyncDev reviews every entry in this directory against the project's own documentation before publishing, and revisits them as servers change.

Worth knowing first

• It runs with your machine's permissions. That is convenient and also the reason to think about what you point it at before you approve a tool call.
• Keep per-call confirmation enabled while you learn its behaviour; it is the cheapest safeguard you have.