OSM is really a dataset. They do offer a raster tile server, but it's intended to support community mapping (improving the dataset), and not necessarily for end

OSM is really a dataset. They do offer a raster tile server, but it's intended to support community mapping (improving the dataset), and not necessarily for end users using a map for other purposes. Basically they want you to host your own tile server using the OSM dataset. There are also commercial offerings that do this for you, but not for free.