What domain information can this MCP server retrieve?

The server provides WHOIS records, DNS records, SSL certificate details, and domain availability status. It queries live registrar and DNS data to return current registration and technical details.

How do I connect to this MCP server?

The server uses Server-Sent Events (SSE) transport and is hosted at https://whois.rjctdlabs.xyz/sse. Configure your MCP client to connect to this endpoint to start querying domain data.

Is there authentication required to use this server?

The registry metadata does not specify authentication requirements. Check the hosted endpoint documentation or contact the maintainer for details on rate limits and API keys if needed.

Can I check multiple domains at once?

The server supports individual domain queries for WHOIS, DNS, SSL, and availability checks. For bulk operations, you would need to make sequential requests through your MCP client.

What's the difference between this and a standard WHOIS lookup tool?

This MCP server integrates WHOIS, DNS, SSL, and availability checks into a single API, making it ideal for developers building domain management tools or automating registration workflows programmatically.

MCP ServerSSEOfficialv1.0.0

WhoisLookup MCP Server

Query domain WHOIS records, DNS entries, SSL certificates, and check domain availability in real time. Built for developers who need to automate domain intelligence and registration workflows.

io.github.therealMrFunGuy/whois-lookup

Open in Agent Studio Scan security

Hosted URL

https://whois.rjctdlabs.xyz/sse

Transport

SSE

Auth

No auth required

What the WhoisLookup MCP server does

How models use it and what it is built for.

Query domain WHOIS records, DNS entries, SSL certificates, and check domain availability in real time. Built for developers who need to automate domain intelligence and registration workflows.

Connect to WhoisLookup

Hosted endpoint — paste into any MCP client.

https://whois.rjctdlabs.xyz/sse

Resources

Where to find authoritative docs and source for WhoisLookup.

Example prompts for WhoisLookup

Paste any of these into Agent Studio after connecting WhoisLookup.

What are the WHOIS details and registrar for example.com
Check if techstartup.io is available for registration
Retrieve all DNS records and SSL certificate info for my-api.dev
Show me the nameservers and expiration date for a domain I specify

WhoisLookup MCP server — FAQ

Common questions about connecting and running WhoisLookup.

What domain information can this MCP server retrieve?
The server provides WHOIS records, DNS records, SSL certificate details, and domain availability status. It queries live registrar and DNS data to return current registration and technical details.
How do I connect to this MCP server?
The server uses Server-Sent Events (SSE) transport and is hosted at https://whois.rjctdlabs.xyz/sse. Configure your MCP client to connect to this endpoint to start querying domain data.
Is there authentication required to use this server?
The registry metadata does not specify authentication requirements. Check the hosted endpoint documentation or contact the maintainer for details on rate limits and API keys if needed.
Can I check multiple domains at once?
The server supports individual domain queries for WHOIS, DNS, SSL, and availability checks. For bulk operations, you would need to make sequential requests through your MCP client.
What's the difference between this and a standard WHOIS lookup tool?
This MCP server integrates WHOIS, DNS, SSL, and availability checks into a single API, making it ideal for developers building domain management tools or automating registration workflows programmatically.

Run WhoisLookup across 60+ AI models, side-by-side

Connect WhoisLookup to Claude, GPT, Gemini, DeepSeek and 60+ AI models in MCP Agent Studio. Compare answers side-by-side, save reusable agent presets, share runs — all in your browser, no install required.

Open Agent Studio