Terrain DEM tile (for Outdoor-style contour lines).

Raw elevation tiles that power the Outdoor style's contour lines. The @rijwind/sdk Map wires these up automatically when you use MapStyle.OUTDOOR. Integrating without the SDK? Point a contour generator such as maplibre-contour at this URL (Terrarium encoding, max zoom 12) and pass your key as ?key= — contour generators run in a web worker and can't send an Authorization header, so the key rides the query string (use an origin-restricted key). Tiles are Terrarium-encoded WebP.

Quota cost: free — terrain tiles are part of the map session, billed once when the session opens (see /tiles/v1/token).