A **Model Context Protocol (MCP)** server that exposes the full **WhoisFreaks API** suite as AI-callable tools. Works with Claude Desktop, Cursor
If you already use Whoisfreaks, the whoisfreaks mcp server is the piece that lets your assistant work with it directly. A Model Context Protocol (MCP) server that exposes the full WhoisFreaks API suite as AI-callable tools. Works with Claude Desktop, Cursor, Windsurf, VS Code, Continue, Zed, and any other MCP-compatible AI client.
The server ships on npm as @modelcontextprotocol/inspector, so your MCP client can launch it on demand — there is no separate build step. Add the server block to your client's configuration, restart it, and the tools register themselves.
The toolset is worth reading before you wire it up, because it tells you what the integration is really for:
liveWhoisLookup — Real-time WHOIS data for any domain — registrar, registrant, dates, nameserverswhoisHistory — Complete ownership history timeline for a domainreverseWhoisLookup — Find all domains registered by an email address, keyword, owner name, or companyipWhoisLookup — WHOIS registration data for any IPv4 or IPv6 addressasnWhoisLookup — WHOIS data for an Autonomous System Number (e.g. AS15169)dnsLookup — Live DNS records — A, AAAA, MX, NS, CNAME, SOA, TXT, SPF, or alldnsHistory — Historical DNS records with full change timelinereverseDnsLookup — Find all domains pointing to a given IP or nameserveripGeolocation — Country, city, region, ISP, and coordinates for any IP addressipSecurity — VPN, proxy, Tor exit node, bot, and threat intelligence for any IPdomainAvailability — Check if a domain is available to register, with optional suggestionssubdomainLookup — Enumerate all known subdomains for a domain, with status and date filtersConfiguration is passed through the environment: WHOISFREAKS_API_KEY. Treat anything key-shaped as a real credential — scope it to the minimum the server needs, and rotate it if it ever lands in a shared config.
| Requirement | Notes | |-------------|-------| | Docker | Required for the recommended Docker path | | Java 17 + Maven 3.8 | Required only if building from source | | WhoisFreaks API Key | Free at whoisfreaks.com/signup | ---
This sits in the team communication group, where several servers overlap in what they claim to do but differ sharply once you actually set them up. Whoisfreaks's toolset — liveWhoisLookup, whoisHistory, reverseWhoisLookup and 11 more — is a fair guide to whether it matches your workflow. It is maintained by whoisfreaks; worth a glance at recent repository activity before you build anything load-bearing on it.
This entry was verified against Whoisfreaks's own documentation before publication; SyncDev keeps the directory reviewed rather than auto-generated.
| Tool | What it does |
|---|---|
| liveWhoisLookup | Real-time WHOIS data for any domain — registrar, registrant, dates, nameservers |
| whoisHistory | Complete ownership history timeline for a domain |
| reverseWhoisLookup | Find all domains registered by an email address, keyword, owner name, or company |
| ipWhoisLookup | WHOIS registration data for any IPv4 or IPv6 address |
| asnWhoisLookup | WHOIS data for an Autonomous System Number (e.g. AS15169) |
| dnsLookup | Live DNS records — A, AAAA, MX, NS, CNAME, SOA, TXT, SPF, or all |
| dnsHistory | Historical DNS records with full change timeline |
| reverseDnsLookup | Find all domains pointing to a given IP or nameserver |
| ipGeolocation | Country, city, region, ISP, and coordinates for any IP address |
| ipSecurity | VPN, proxy, Tor exit node, bot, and threat intelligence for any IP |
| domainAvailability | Check if a domain is available to register, with optional suggestions |
| subdomainLookup | Enumerate all known subdomains for a domain, with status and date filters |
| domainDiscovery | Find domains by keyword, including typosquatting and similar variants |
| sslLookup | SSL/TLS certificate details — issuer, expiry, SANs, chain, and raw output |
{
"mcpServers": {
"whoisfreaks": {
"command": "docker",
"args": [
"run", "-i", "--rm",
"-e", "WHOISFREAKS_API_KEY=your-api-key-here",
"--entrypoint", "java",
"whoisfreaks/mcp-server:latest",
"-jar", "app.jar"
]
}
}
}Configuration as documented by the project. Restart the client after saving.
| Requirement | Notes | |-------------|-------| | Docker | Required for the recommended Docker path | | Java 17 + Maven 3.8 | Required only if building from source | | WhoisFreaks API Key | Free at whoisfreaks.com/signup | ---
| Variable | Description | Required |
|---|---|---|
| WHOISFREAKS_API_KEY | Credential the server authenticates with. | Yes |
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