[m4rtink]

Looks like its is possible to download the full SRTM dataset - would that not work ?

https://www.reddit.com/r/gis/comments/qg4b6j/is_it_possible_...

Also I know Geonames has a service for elevation lookup based on SRTM & other data: http://www.geonames.org/export/web-services.html

But if you need to semple a big are in detail, that could potentially run into API limits or overload the service. But it demonstrates its possible to get the dataset & provide an API on top of it by a third party. :)

[m4rtink]

Some more information from DRL, which was apparently involved in the mission:

https://geoservice.dlr.de/web/dataguide/srtm/

https://download.geoservice.dlr.de/SRTM_XSAR/

[klamann]

I did a quick review of the resources that you linked to:

https://portal.opentopography.org/raster?opentopoID=OTSRTM.0... allows to submit a request for data from a specific area through a web form (no REST API), then you get redirected to a page where you get a download link after your request has been processed. Does not give access to the original SRTM data.

http://www.geonames.org/export/web-services.html exposes SRTM data through a REST API in their own custom format. I immediately ran into rate limiting when I tried to download a small map tile.

https://download.geoservice.dlr.de/SRTM_XSAR/ provides free access to SRTM data in the original format. This is a great resource! Unfortunately, the map tiles cover 10x10 degrees, which results in huge files. NASA used to provide 1x1 degree tiles, which was much better suited for on-demand access.

https://download.geoservice.dlr.de/TDM30_EDEM/ DLR does provide 1x1 degree tiles for similar data sets like TanDEM-X, but for those they do not provide anonymous access.