In the OpenStreetMap API, it is able to retrieve and store raw geographical info on the OpenStreetMap database.  While this API provides data, it is not used for web use like google maps. It is more so used as a map editor software. You can still, however, request sections of code to use for a map. It is open sourced so anyone can use this to build what they want, and anyone can edit it. The current version, after updating it, is 0.6.