The Assistive Context-Aware Toolkit (ACAT) is a free, open-source utility designed to assist individuals with limited speech and typing abilities. Created at Intel Labs, ACAT offers features such as keyboard simulation, word and sentence prediction, and speech synthesis, making it a versatile tool for communication enhancement. Originally developed for Professor Stephen Hawking, the toolkit has been refined to accommodate a broader user base, ensuring its adaptability for various needs.

With a focus on configurability, ACAT invites developers to contribute by adding new user interfaces and sensing modalities, thereby expanding its functionality. Developed in C# and compatible with Windows 10 (20H2 or higher) and 11, ACAT aims to provide a supportive environment for users requiring assistive communication technologies.