WHOIS for Claude Code

io.github.kincaidyang/whois

Query WHOIS/RDAP information for domains, IP addresses, CIDR prefixes and ASNs. Self-hostable.

client:Claude Code transport:streamable-http tools:2

Install WHOIS in Claude Code

run in your project directory

claude mcp add --transport http whois https://whois.ddnsip.cn/mcp

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