The Open Topo Data API enables developers to incorporate free terrain elevation datasets. The API features REST architecture, JSON responses, and interpolation options including nearest, bilinear, and cubic. Locations are limited to 100 per request, and calls are limited to 100 per day. This API functions as a free alternative to the Google Maps Elevation API.
The following is a list of SDKs from our SDK directory that matched your search term. Though your definition of an SDK may differ, in our world, we define SDKs as platform- specific tools for consuming existing APIs of the sort we list in our API directory. For example, the Ruby SDK for consuming the Twitter Ads API. If you think an SDK, API, or other asset is missing from our directory, be sure to check our guidelines for making contributions to ProgrammableWeb.