This SDK is a C Library for interacting with the Clickatell Gateway. It provides a way for you to build a Clickatell SMS library that provides public functions which make calls to Clickatell's HTTP and REST APIs. This allows you to send SMS, query an SMS status, query the cost of an SMS, check SMS route coverage and more. All the Clickatell API's support text, Unicode, binary SMS and flash messaging, providing a way to send SMS messages around the world to clients, staff or user-database. Clickatell covers over 819 networks in more than 220 countries. Connecting you to the wireless world through simple integration while offering customization and personalization.