opentopodata.org is an API for elevation data.
It’s easy to get running yourself.
git clone github.com/ajnisbet/opentopodata
cd opentopodata
docker build --tag opentopodata --file docker/Dockerfile .
docker run --rm -it --volume $(pwd)/data:/app/data:ro -p 5000:5000 opentopodata
curl http://localhost:5000/v1/test-dataset?locations=56.35,123.90
Responses are compatible with the Google Maps Elevation API.
{
"results": [{
"elevation": 815.0,
"location": {
"lat": 56.0,
"lng": 123.0
}
}],
"status": "OK"
}
I’m also hosting a free API with a number of open datasets.
| Dataset | Resolution | Extent |
|---|---|---|
| ETOPO1 | 1.8 km | Global, including bathymetry and ice surface elevation near poles. |
| SRTM 90m | 90 m | Latitudes -60 to 60. |
| SRTM 30m | 30 m | Latitudes -60 to 60. |
| EU-DEM | 25 m | Europe. |
| ASTER GDEM | 30 m | Global. |
| NED ⅓" | 10 m | Continental USA, Hawaii, parts of Alaska. |
For more info check out Open Topo Data or the source on GitHub.