ipinfo.io - Simple IP address information.
Wallcat - Enjoy a new, beautiful wallpaper, every day.
BigDataCloud IP Geolocation API - Next Generation IP GeolocationAPI
Splashify - Beautiful desktop wallpapers for Mac and Windows
IP Location - IPLocation.io provides a free lookup tool to check the location of your Public IP Address. It finds this data through various GEO IP databases and online services. Just enter an IP and check its location easily.
Irvue - (previously Unsplash Wallpaper) Gorgeous wallpapers on your Mac.