The best alternatives to Free IP API are Abstract APIs, iptrace.io, and WhoisXML API. If these 3 options don't work for you, we've listed a few more alternatives below.
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Abstract provides powerful APIs to automate common dev tasks. We make it easy to validate emails, geolocate IPs, calculate VAT, compress images and more. We focus on an awesome dev experience with top documentation and support, and provide free and paid plans.
WhoisXML API aggregates and delivers comprehensive domain, IP, and DNS intelligence empowering all types of cybersecurity enterprises, government and law enforcement agencies, and SMBs to build better tools and platforms for their customers.
The most complete IP to geolocation API. Use ipXapi's extensive set of localization data to implement geographic restrictions on your site, optimize ad targeting or deliver user experiences customized based on the location of your website visitors.