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You can use ipinfo to filter out bot traffic, customize content based on visitor's location, display full country names, perform bulk IP geolocation, and more.

ipapi.co is a secure fast & easy to use API to get location information for an IP address. Free forever plans are there to get your started and then you can select a plan that suits your needs.

IP Sidekick is a geolocation API that returns information about an IP address. You can use it to customize your content based on the visitor's location or display their country.

IP Vigilante provides a free geographical IP locator API, so the developers can obtain geographical information of an IP in various formats: JSON and CSV.