Dataroom Caribisch Nederland is now available as web service.
Preferably the WMTS is used.
License: It should be OK to use for OpenStreetMap.
I asked Allroads if they are willing to add it to this repository (they previously added the PDOK layers), but first details need to be further clarified.
Areas like Curacao are not part of this and are being mapped using Bing aerial or similar layers.
Curacao has their own Kadaster foundation but would need permission to use their aerial imagery.
cc: Probelnijs (OSM) @AllroadsNL (OSM) @CasvanGroenigen-TomTom (OSM) via private messages.