The MaxMind JavaScript SDK by Arnout Kazemier communicates with the API to access anti-fraud features. It includes installation with sever, standalone instance, and API.
One might assume popular cloud providers' IP addresses will be associated with the countries those providers' data centers are located in, but that isn't always the case.
Google recently announced an expansion to its GPSRP program (a bug bounty program for Google Play apps). Additionally, the company introduced the new Developer Data Protection Reward Program (DDPRP) to help uncover and stop data abuse across Android apps, OAuth projects, and Chrome extensions.