epsg4326 (Geographic / WGS84, global lat-lon), epsg3857 (Web Mercator), epsg3413 (NSIDC Sea Ice Polar Stereographic North, Arctic), epsg3031 (Antarctic Polar Stereographic). Each entry also reports the WMTSCapabilities URL and the set of TileMatrixSets (resolution tiers) declared in the projection when the catalog has already been cached. Data: NASA GIBS / NASA Earthdata (US public domain).x-api-key: ********************curl --location '/api/v1/environment/nasa-gibs/projections' \
--header 'x-api-key: <api-key>'{
"data": {
"count": 0,
"projections": [
{
"code": "epsg4326",
"name": "Geographic (WGS84) equirectangular - global lat/lon",
"capabilities_url": "https://gibs.earthdata.nasa.gov/wmts/epsg4326/best/1.0.0/WMTSCapabilities.xml",
"tile_matrix_sets": [
"string"
],
"layer_count": 0
}
],
"attribution": "NASA GIBS / NASA Earthdata (US public domain)"
},
"meta": {
"endpoint": "/api/v1/fred/us/cpi",
"data_time": "2026-04-16T14:30:00Z",
"response_time": "2026-04-16T14:30:12Z",
"provider": "Sugra API v1.0.1",
"source": "string",
"fallback_used": true,
"fallback_chain": [
"string"
],
"cached": true
}
}