WP Rentals provides two types of maps. You can choose between Open Street Map and Google Map.
Open Street Map
For open street map option you don’t need api but you can use MapBox API for tile server (the images of the map)
If don’t add API for MapBox we will use the default open street server which can work as well
IMPORTANT: Street view and places options from property page map are not supported by Open street map.
You can get the API for the MapBox tile server go here: https://www.mapbox.com/
In order to see the map, you must add your key in Theme options -> Google Maps API key.