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WHOIS, DNS, SSL, and domain availability lookups for AI assistants
About
WHOIS, DNS, SSL, and domain availability lookups for AI assistants
Security Report
Valid MCP server (6 strong, 4 medium validity signals). 3 known CVEs in dependencies (0 critical, 3 high severity) Imported from the Official MCP Registry. 1 finding(s) downgraded by scanner intelligence.
8 files analyzed · 4 issues found
Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.
Permissions Required
This plugin requests these system permissions. Most are normal for its category.
What You'll Need
Set these up before or after installing:
Environment variable: WHOISJSON_API_KEY
How to Install
Add this to your MCP configuration file:
{
"mcpServers": {
"io-github-whoisjson-mcp-server": {
"env": {
"WHOISJSON_API_KEY": "your-whoisjson-api-key-here"
},
"args": [
"-y",
"@whoisjson/mcp-server"
],
"command": "npx"
}
}
}Documentation
View on GitHubFrom the project's GitHub README.
@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
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