The Wirefree Thought GeoDB Get-City-Distance API returns the straight-line distance between any two cities in either JSON or JSONP format. Responses may be given in either miles or kilometers, depending on the units specified in the call. In the future, this API will support additional distance criteria.
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.