https://www.whoxy.com/
WHOIS API | WHOIS Lookup API | Domain WHOIS API
WHOIS API lets you quickly lookup a domain name's WHOIS data. You get fully parsed WHOIS fields in XML or JSON format at just $2 per 1000 domains!
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https://bulk-whois-api.com/
Bulk Whois API – Parsed WHOIS data in JSON for everyone
Bulk Whois API is a provider of parsed WHOIS data in JSON with simple API, competitive pricing, top notch support, and more.
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https://whoapi.com/
Whois API and Domain Availability API - developed by WhoAPI Inc.
Mar 12, 2026 - WhoAPI Inc. is a software company that has been developing APIs since 2011. Whois API, Domain Availability API, Blacklist API and others.
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https://whois-history.whoisxmlapi.com/
WHOIS History | Check domain history ownership | WhoisXML API
Get access to 28.7B+ historical WHOIS records via API calls, lookup tools, and database download. 10+ years tracking across 7,596 TLDs. Learn more.
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