What it does
ip-api finds the location of an IP address or domain: country, region, city, ZIP code, coordinates, time zone, ISP, organisation and AS number, and whether it is a mobile, proxy or hosting address. Responses are JSON, XML, CSV or other formats, and batch requests of up to 100 addresses are supported. Free for non-commercial use without a key, at up to 45 requests per minute over HTTP; commercial use and HTTPS need the paid Pro plan.
More information: https://ip-api.com/docs