SMSBOX provides an international, web-based SMS distribution platform with 852 operators in 212 countries. Users can create single or bulk messages using SMSBOX tools and send SMS via email client, mobile device, or even toolbar. Users can also rent a dedicated phone number to receive SMS, and they can send voice messages in the form of vocalized text, an uploaded audio file, or a recorded voice. The SMSBOX API can be integrated with other applications to enable them to send SMS.
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.