WhoisXML API
WhoisAPI
zonefiles.io
Domainr
JsonWhois.io
IP Ninja
Dymo
Primitive
ScriptSure
WhoisXML APIWhoisAPI - WhoisAPI is the premier provider of freshly parsed whois data for domain names and IP addresses...
zonefiles.io - List of registered domain names updated daily
Domainr - Domainr is the only ICANN-accredited domain status API provider.
JsonWhois.io - JsonWhois is the leading cloud hosted Whois API.
IP Ninja - Advanced Network Intelligence API featuring enriched Reverse IP lookups, historical hostname mapping, and fully parsed WHOIS data for IPs and domains. Built for security researchers and developers seeking structured, actionable network insights.
Dymo - Free API to validate users and stop multi-accounts on your platform, as well as to get information about any kind of data.