io.github.Whoisjson/mcp-server

WHOIS, DNS, SSL, and domain availability lookups for AI assistants

0 tools GitHub

No known CVEs

No license

Maintained

Last commit 52d ago

Works with most clients

Transport: stdio

0 tools

Grade F

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Developer Tools Security

Step 1

Install in your client

Config is the same across clients — only the file and path differ.

Supported in Claude Desktopstdio · Node 18+

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "io-github-whoisjson-mcp-server": {
      "command": "<see-readme>",
      "args": []
    }
  }
}

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Read me

What io.github.Whoisjson/mcp-server does

MCP (Model Context Protocol) server for the WhoisJSON API. Exposes WHOIS, DNS, SSL, and domain availability lookups as tools for AI assistants.

Test This Server

No automated test available for this server. Check the GitHub README for setup instructions.

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Why this score

Five weighted categories — click any category to see the underlying evidence.

Score breakdown

30/100across 5 weighted dimensions

How we score →

0255075100

−70

Security

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Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

No package registry to scan.

Community

Reviews

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Have you used this server?

Share your experience — it helps other developers decide.

How easy was setup?Did it work reliably?How was the documentation?

Frequently Asked Questions

Is io.github.Whoisjson/mcp-server safe to use?: io.github.Whoisjson/mcp-server has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.
How do I install io.github.Whoisjson/mcp-server?: io.github.Whoisjson/mcp-server can be installed by cloning its GitHub repository and following the setup instructions in the README.
What AI clients work with io.github.Whoisjson/mcp-server?: io.github.Whoisjson/mcp-server is compatible with claude-desktop, cursor, claude-code. It uses stdio transport.
Is io.github.Whoisjson/mcp-server actively maintained?: io.github.Whoisjson/mcp-server is recently maintained — last commit was 52 days ago.

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Community

Discussion

Start a conversation

Ask a question, share a tip, or report an issue.

Has anyone used this with Cursor?How do you handle auth?Any alternatives?

Tools

Tool

Description

whois_lookup

WHOIS registration data for a domain (registrar, dates, contacts, nameservers…)

dns_lookup

All DNS records for a domain (A, AAAA, MX, NS, TXT, CNAME, SOA, CAA, DMARC…)

ssl_check

SSL/TLS certificate details and validity for a domain

domain_availability

Check if a domain is available for registration

Configuration

Claude Desktop

Edit ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or
%APPDATA%\Claude\claude_desktop_config.json (Windows):

{ "mcpServers": { "whoisjson": { "command": "npx", "args": ["-y", "@whoisjson/mcp-server"], "env": { "WHOISJSON_API_KEY": "your_api_key_here" } } } }

Cursor

Edit ~/.cursor/mcp.json:

{ "mcpServers": { "whoisjson": { "command": "npx", "args": ["-y", "@whoisjson/mcp-server"], "env": { "WHOISJSON_API_KEY": "your_api_key_here" } } } }

Windsurf

Edit ~/.codeium/windsurf/mcp_config.json:

{ "mcpServers": { "whoisjson": { "command": "npx", "args": ["-y", "@whoisjson/mcp-server"], "env": { "WHOISJSON_API_KEY": "your_api_key_here" } } } }

Frequently Asked Questions

Is io.github.Whoisjson/mcp-server safe to use?

io.github.Whoisjson/mcp-server has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.

How do I install io.github.Whoisjson/mcp-server?

io.github.Whoisjson/mcp-server can be installed by cloning its GitHub repository and following the setup instructions in the README.

What AI clients work with io.github.Whoisjson/mcp-server?

io.github.Whoisjson/mcp-server is compatible with claude-desktop, cursor, claude-code. It uses stdio transport.

Is io.github.Whoisjson/mcp-server actively maintained?

io.github.Whoisjson/mcp-server is recently maintained — last commit was 52 days ago.

@whoisjson/mcp-server

MCP (Model Context Protocol) server for the WhoisJSON API. Exposes WHOIS, DNS, SSL, and domain availability lookups as tools for AI assistants.

Tools

Tool	Description
`whois_lookup`	WHOIS registration data for a domain (registrar, dates, contacts, nameservers…)
`dns_lookup`	All DNS records for a domain (A, AAAA, MX, NS, TXT, CNAME, SOA, CAA, DMARC…)
`ssl_check`	SSL/TLS certificate details and validity for a domain
`domain_availability`	Check if a domain is available for registration

Prerequisites

Sign up at whoisjson.com and copy your API key from the dashboard.
Node.js ≥ 18.

Installation

npm install -g @whoisjson/mcp-server
# or run directly with npx (no install needed):
npx @whoisjson/mcp-server

Configuration

Claude Desktop

Edit ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or
%APPDATA%\Claude\claude_desktop_config.json (Windows):

{
  "mcpServers": {
    "whoisjson": {
      "command": "npx",
      "args": ["-y", "@whoisjson/mcp-server"],
      "env": {
        "WHOISJSON_API_KEY": "your_api_key_here"
      }
    }
  }
}

Cursor

Edit ~/.cursor/mcp.json:

{
  "mcpServers": {
    "whoisjson": {
      "command": "npx",
      "args": ["-y", "@whoisjson/mcp-server"],
      "env": {
        "WHOISJSON_API_KEY": "your_api_key_here"
      }
    }
  }
}

Windsurf

Edit ~/.codeium/windsurf/mcp_config.json:

{
  "mcpServers": {
    "whoisjson": {
      "command": "npx",
      "args": ["-y", "@whoisjson/mcp-server"],
      "env": {
        "WHOISJSON_API_KEY": "your_api_key_here"
      }
    }
  }
}

Running locally (development)

cd mcp-server
npm install
npm run build
WHOISJSON_API_KEY=your_key npm start

Publishing

npm run build
npm publish --access public

API reference

Full API documentation: whoisjson.com/documentation