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mcp/harbor
Claude Code

whois mcp server for Claude Code

io.github.cyanheads/whois-mcp-server

Domain registration, availability, DNS records, and IP/ASN resolution via RDAP and DNS-over-HTTPS.

client:Claude Code transport:stdio runtime:npm

Install whois mcp server in Claude Code

run in your project directory

Held in this page only — never stored, logged, or sent anywhere but back to your screen. 

claude mcp add whois-mcp-server -e MCP_LOG_LEVEL=<MCP_LOG_LEVEL> -e RDAP_TIMEOUT_MS=<RDAP_TIMEOUT_MS> -e DOH_TIMEOUT_MS=<DOH_TIMEOUT_MS> -e RDAP_MAX_RETRIES=<RDAP_MAX_RETRIES> -e DOH_MAX_RETRIES=<DOH_MAX_RETRIES> -- npx -y @cyanheads/whois-mcp-server

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs

whois mcp server in other clients

whois mcp server MCP server