How to Use the WhoisXML MCP in Claude

Q: Does WhoisXML support domain checking with Claude Desktop?

Absolutely. The checkdomainavailability tool lets you check registration status immediately. It's one of the simplest, most useful functions for any developer using this MCP Server.

Check domain status and verify emails right from your local setup using Claude Desktop's integrated MCP Server access.

See Vinkius in Action

Works with every AI agent you already use

…and any MCP-compatible client

MCP Servers - Free for Subscribers

Connect WhoisXML MCP to Claude Desktop

Create your Vinkius account to connect WhoisXML to Claude Desktop and route execution through our secure gateway. The platform manages server hosting, runtime updates, and security layers. Configuration requires no manual server provisioning.

GDPR Free for Subscribers

Setup WhoisXML with Claude Desktop

Ask AI about this MCP

ChatGPT

Claude

Perplexity

Validate Domains On the Fly

Need to know if a name is available? Running `check_domain_availability` tells you instantly if a domain can be registered. This keeps your local development fast, so you don't have to leave the chat window. Furthermore, you get detailed insights using `get_whois_record`. It pulls both raw and parsed WHOIS data directly into your subprocesses.

Pinpoint Location Data

Figure out where an IP address belongs with the `get_ip_geolocation` tool. This is useful for geo-targeting features or debugging connection issues. It’s a quick way to map an arbitrary IP to a physical location without needing external lookups. The results come back cleanly, ready to feed into your local scripts.

Verify Contact Details

Don't waste time on bad emails. Use `verify_email` to check if an address is valid and actually active. This prevents broken links in your code base. We also run `get_whois_record` for deeper identity checks, giving you the full context surrounding a domain owner.

Setup guide

Set up WhoisXML MCP in Claude Web or Desktop

1

Open Claude Settings

Go to claude.ai, click your profile icon, then navigate to Customize → Connectors.
2

Add Custom Connector

Click the "+" button and select Add custom connector. Paste your Vinkius endpoint URL: https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com. For OAuth-protected servers, expand Advanced settings to add credentials.
3

Start a conversation

Open a new chat. The WhoisXML MCP tools are available immediately — no restart needed.

Endpoint URL

https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp

No configuration file needed — paste the URL directly in the Claude web interface.

Available on Free (1 connector), Pro, Max, Team, and Enterprise plans.

Prerequisites

Claude Desktop installed (macOS or Windows)
Active Vinkius subscription with a valid endpoint token

1

Open Claude Desktop Settings

Click the menu icon at the top-left corner, go to Settings → Developer → Edit Config. This opens claude_desktop_config.json in your default text editor.
2

Paste the WhoisXML MCP configuration

Copy the JSON snippet on the right into the mcpServers object. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com.
3

Restart Claude Desktop

Close and reopen the application. Claude needs a full restart to load new MCPs — refreshing a conversation is not enough.
4

Verify the connection

Open a new conversation. Click the 🔌 icon at the bottom of the message input. You should see tools listed under whoisxml-mcp.

json

{
  "mcpServers": {
    "whoisxml-mcp": {
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

Get your connection token →

Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by WhoisXML API. All third-party trademarks, logos, and brand names are the property of their respective owners. Their use on this website is strictly for informational purposes to identify service compatibility and interoperability.

Why Choose Vinkius

Vinkius connects your tools to AI with real-time monitoring and automatic cost savings — all from one dashboard.

Connect WhoisXML now

Real-time monitoring

Live

visibility into every interaction

Connect your favorite tools to your AI and see exactly what's happening — every request, every response, in real time.

Built-in savings

60%

lower AI costs

Vinkius compresses data between your apps and your AI automatically. Lower bills every month — no configuration required.

Single dashboard

One

place for every integration

Every tool your AI connects to, managed from a single screen. One account, complete control.

Common questions about WhoisXML MCP in Claude Desktop

You interact with the MCP Server through the local stdio transport. You tell your AI client which tool you need, and it executes the function on your machine. The results then populate the chat for you to read or pipe into a script.

The server touches Domain names, IP addresses, and Email addresses. You can use `get_ip_geolocation` to work with IPs, for instance, or `verify_email` for email validation.

Yep. Because it uses the stdio transport layer, you can run these tools as subprocesses right on your machine. That means full access to local resources while keeping your workflow contained.

Absolutely. The `check_domain_availability` tool lets you check registration status immediately. It's one of the simplest, most useful functions for any developer using this MCP Server.

This server primarily handles Domain/IP/Email data. Since it runs locally via stdio transport, the data stays contained within your machine's processes.

Use it with your favorite AI tools

Connect this server to Cursor, Claude, VS Code, and more.

OpenAI Agents SDK sdk-python

Google ADK sdk-python

Pydantic AI sdk-python

Vercel AI SDK sdk-typescript