DEAFilter is a free RESTful API that can be implemented into an existing site with a couple lines of code. It is used to get rid of all Disposable Email Address services that are used to infest a site with fake users and spammers.
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.