This client acts as a Java library for 5 map-related Google APIs. Using the library, developers can create geocoding applications that consume the Google Directions API, Distance Matrix API, Elevation API, Geocoding API, and Time Zone API. The client is community supported, and requires Java 1.7 or later as well as a Google Maps API key for use.
Foursquare just made the switch from using the Google Maps API, to joining the crowd-sourced, global OpenStreetMap movement. To do most of the heavy lifting, foursquare relied upon the still fairly new MapBox API.