Frousquare is not using any OSM API. They are just using map tiles provided by MapBox with the leaflet library to display it in the browser. Toby On Fri, Mar 2, 2012 at 1:14 PM, Frans Thamura <frans at meruvian.org> wrote: > hi all > > we have great news that foursquare using OSM now > > anyone working with Fq? which API that osm using ? > > the ruby one?