The API base path is https://api.ip-seek.com/json/whois/{query} {query} can be a single domain (e.g. google.com).
https://api.ip-seek.com/json/whois/{query}
{query}
{ "success": "true", "data": "[]", "executionDuration": "0.2790", "version": "1.0.0", }
{ "domain_name": "GOOGLE.COM", "registry_domain_id": "2138514_DOMAIN_COM-VRSN", "registrar_whois_server": "whois.markmonitor.com", "registrar_url": "http://www.markmonitor.com", "updated_date": "2019-09-09T15:39:04Z", "creation_date": "1997-09-15T04:00:00Z", "registrar": "MarkMonitor Inc.", "registrar_abuse_contact_email": "abusecomplaints@markmonitor.com", "registrar_abuse_contact_phone": +1.2083895740, "domain_status": [ 0 => "clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited" 1 => "clientTransferProhibited https://icann.org/epp#clientTransferProhibited" 2 => "clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited" 3 => "serverDeleteProhibited https://icann.org/epp#serverDeleteProhibited" 4 => "serverTransferProhibited https://icann.org/epp#serverTransferProhibited" 5 => "serverUpdateProhibited https://icann.org/epp#serverUpdateProhibited" ], "name_server": [ 0 => "NS1.GOOGLE.COM" 1 => "NS2.GOOGLE.COM" 2 => "NS3.GOOGLE.COM" 3 => "NS4.GOOGLE.COM" ], "dnssec": "unsigned" }