Yes. We have released Tobii Core SDK and Tobii Unity SDK. Here are the links:
Unity SDK: http://developer.tobii.com/tobii-unity-sdk/
Core SDK (high level for C#) and Stream Engine (low level for C++): http://developer.tobii.com/tobii-core-sdk/
EyeX SDK is still available, since Core SDK has no C++ bindings yet: http://developer.tobii.com/download-tobii-legacy-sdks
Core SDK is using EyeX Engine. If you don’t want to rely on EyeX Engine then you should use Stream Engine API. Unity SDK also doesn’t use EyeX Engine.
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