Yes, please do. AT&T provides these SDKs to make the development of applications using APIs provided by AT&T as fast and simple for you as possible.

This error occurs because the SDK jar file is not added to the application. Steps to fix this issue:

1. Go to the properties of the application.
2. Select Java BuildPath.
3. In Libraries Tab, Press "Add Jar" button and add the SDK_NAME.jar file.
4. Now go to "Order and Export" tab and Check/Select the "SDK_NAME.jar" file and press OK.
5. Rerun the application now.

The SDKs are listed by platform on our SDKs, Plugins, and Tools page. Links to this page can be found by searching for “SDK” in the search box in the header of any page of the AT&T Developer Program, a link entitled “SDKs, Plugins, and More” in the footer of any page of the AT&T Developer Program and in the left navigation pane of any of the API documentation pages.

Yes, to run the SDK Sample Apps you must first create a new app in My Apps to acquire an App Key and App Secret.

The short code is optional. It is only needed by SDKs that require AT&T Wireless customer consent to allow the apps to use the customer’s AT&T Wireless mobile number.

Our AT&T API Platform SDK supports multiple platforms. Refer to our SDKs, Plugins, and Tools page for the most up to date information on supported platforms.