MCP (Model Context Protocol) server for the WhoisJSON API. Exposes WHOIS, DNS, SSL, and domain availability lookups as tools for AI assistants.
Whois, Dns, Ssl, And Domain Availability Lookups For Ai Assistants is an MCP project maintained in the whoisjson/mcp-server repository. The maintainer describes its purpose as “MCP (Model Context Protocol) server for the WhoisJSON API. Exposes WHOIS, DNS, SSL, and domain availability lookups as tools for AI assistants”. Read the project documentation for the complete scope.
The documented npm package is @whoisjson/mcp-server. The configuration below comes from the maintainer’s example; adapt its paths and account values to your environment.
The example declares WHOISJSON_API_KEY. Secret-looking values have been replaced with placeholders. Required and optional labels are shown only when the documentation states them.
Project documentation · Repository · Discovery listing. This profile records the public documentation checked on 2026-10-08.
Check the linked publisher documentation and your connected client's tool list. Names and availability can vary with the server version and account permissions.
| Tool | What it does |
|---|---|
| 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 |
{
"mcpServers": {
"whoisjson": {
"command": "npx",
"args": [
"-y",
"@whoisjson/mcp-server"
],
"env": {
"WHOISJSON_API_KEY": "YOUR_WHOISJSON_API_KEY"
}
}
}
}From the project documentation. Replace placeholders and example paths before connecting.
| Variable | Description | Required |
|---|---|---|
| WHOISJSON_API_KEY | Declared in the maintainer’s client configuration. | Check documentation |
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