The WebCargo Domain Check API (also referred to as the Domain Availabily API) allows you to deeply probe a domains availability. The RESTful API also uses multiple methods to check an email addresses authenticity. The API's end-point accepts a domain as the argument and performs an availability check and returns the status of the domain as a Boolean embedded in a JSON object.
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.