WhoisJSON
About
WHOIS, DNS, SSL, and domain availability lookups for AI assistants
Use this server
Add it to your MCP client. The catalogue lists this config verbatim from its source — it does not run, download, or vouch for the server. Review the command before you run it.
Transportstdio (runs a local command)
Env vars
WHOISJSON_API_KEYClaude Code
claude mcp add --env WHOISJSON_API_KEY= mcp-server -- npx @whoisjson/mcp-server
Cursor
If the button doesn't open Cursor, use the JSON below — Cursor accepts the same mcpServers config.
VS Code
code --add-mcp '{"name":"mcp-server","command":"npx","args":["@whoisjson/mcp-server"],"env":{"WHOISJSON_API_KEY":""}}'
JSON
{
"mcpServers": {
"mcp-server": {
"command": "npx",
"args": [
"@whoisjson/mcp-server"
],
"env": {
"WHOISJSON_API_KEY": ""
}
}
}
}
Environment variables are listed by name only — fill in your own values. Entries never carry secrets.