Namelix - AI business name generator
Whoisology - Connected database of whois records and whois history
Naminum - A company name generator that's actually useful
WhoisThisDomain - Domain name lookup tool that allows you to get information about domain registration from WHOIS server.
DomainWheel - Smart startup name generator
JSON WHOIS API - Parsed domain WHOIS data from any WHOIS server via RESTful API with metered pay as you pricing.