ABTXT is an SMS gateway provider allowing clients to use the gateway on their own sites and provide SMS services to their site visitors. The API lets developers access the service programmatically. Methods exposed by the API include sending single/multiple sms messages, check user balance, check delivery status, scheduling messages and more. The API uses HTTP calls.
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.