The Bandwidth C# SDK by Bandwidth provides users with tools that assist with using the Bandwidth API. Some of these include: application management, controlling bridges between calls, searching free local or toll-free phone numbers, sending and listing SMS/ MMS, managing recordings, and more. The Bandwidth API allows users to make calls to get information about an account, get a list of transactions made on an account, as well as calls for phone numbers, messages, calls, media, applications, errors, and other resources.
Our API directory now includes 239 messaging APIs. The newest is the Parseco API. The most popular, in terms of mashups, is the Twilio SMS API. We list 169 Twilio SMS mashups. Below you'll find some more stats from the directory, including the entire list of messaging APIs.