From their site: Qurl is a free service, designed to make posting long URLs easier. The commonest use of the qurl is to shorten a cumbersome url into a much shorter and easier to remember url which won't break when incorporated into an email as a link.
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.