The Anati Homeworld is the home planet of the Anati.
At some point near the end of the Andalite-Yeerk War, the Yeerks sent in a fleet to enslave the Anati on their home planet. The fleet vanished. Another force was sent, which invaded the Anati Homeworld. After fighting for some time, the Anati with Andalite support pushed the Yeerks off the Anati homeworld. Because the Yeerks failed to enslave the Anati, Visser One (who was in charge of the operation) was sentenced to death by the Council of Thirteen.