Titiler (raster COG)

Use this page with Global Geobase context.

What this service is

Titiler serves Cloud-Optimized GeoTIFF (COG) raster tiles and related metadata endpoints.

When an agent should use it in a Next.js app

Use for raster overlays, satellite layers, and elevation/imagery visualization.

Base URL from CLI output

{origin}/titiler/v1

Auth required

Use project keys according to your raster data access policy; prefer server-side token handling for private assets.

Minimal request examples


# COG metadata
curl "${GEOBASE_PROJECT_URL}/titiler/v1/cog/info?url=${COG_URL}&apikey=${GEOBASE_ANON_KEY}"
 
# Map extent (WGS84 bounds) — TiTiler 2.x; /cog/bounds was removed
curl "${GEOBASE_PROJECT_URL}/titiler/v1/cog/WebMercatorQuad/tilejson.json?url=${COG_URL}&apikey=${GEOBASE_ANON_KEY}"

Human checkpoint

Validate COG URL reachability and tile rendering parameters (resampling, bands, colormap).