The Koasati language is the ancestral language of the Coushatta Tribe of Louisiana, whose history stretches back hundreds of years, with their ancestors living in the southeastern United States long before European contact. Today, Koasati is spoken by roughly 200–400 people and is considered an endangered language, making language revitalization efforts especially important. As a Muskogean language, it is related to Choctaw, Chickasaw, Alabama, Apalachee, Mikasuki, and Creek.  
Our Koasati course was created in 2015 by the Coushatta Tribe. The course includes three units, each with three lessons, and is designed to teach the essentials of the Koasati language and Coushatta culture.