Esendex provides A2P SMS services and boasts a monthly sending capacity of more than 200 million messages. The Esendex SMS Surveys API is designed to simplify the sending of SMS surveys to recipients. The APIs endpoint eliminates the need for implementing concepts such as code branching, retry logic, or fuzzy matching when sending SMS surveys. The API sends requests and returns responses in JSON or XML format.
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.