DC5 WHOIS for Claude.ai

tech.dc5.whois/dc5-whois

WHOIS, RDAP, DNS, IP / ASN / CIDR and Web3 name (ENS, Unstoppable, Handshake) lookups. No API key.

client:Claude.ai transport:streamable-http tools:4

Install DC5 WHOIS in Claude.ai

Settings → Connectors → Add custom connector

https://whois.dc5.tech/mcp

Claude on the web takes a remote URL and completes OAuth in the browser. For a packaged server use Claude Desktop or Claude Code instead. Claude.ai docs

What Claude.ai can do once it is connected

check_lookalike
check_mail_security
list_data_sources
lookup_target

DC5 WHOIS in other clients

Claude Code
Claude Desktop
Cursor
VS Code
Zed
Windsurf
Cline
Gemini CLI
Grok
ChatGPT
LangChain

DC5 WHOIS MCP server