DemR · elevation engine · /height & /dem

True 2 m bilinear ground elevation sampled straight from world.demr (Copernicus GLO-30, DemR-packed). The same data the Climbs 3D terrain bakes against.

Elevation at a point

Try: Passo dello Stelvio · Alpe d'Huez · Denver · Null Island (ocean)

Grid API (3D terrain)

GET /dem?bbox=minlat,minlon,maxlat,maxlon&n=128 — an n×n row-major grid of i16 metres (row 0 = south, col 0 = west), byte-compatible with GraphR's /dem but sampled from the real DEM. GET /version reports tile count + quantisation.