Map API provides raster map images (background map) and other points of interests like ticket sales positions, city bike stations and park and ride areas as vector maps.
Background map API provides raster map tiles that are shared amongst many HSL’s applications. Raster map style has been designed to work as “generic HSL map style”.
Points of interest API provides vector map tiles that can be displayed on top of background raster map.
HSL's background map as a TMS-service (Tile Map Service) and a number of public transport related points of interest (eg. ticket vending points, city bike stations & park and ride sites) as Mapbox vectortile-services.