Line the air fryer basket with a piece of parchment paper.
Combine mozzarella cheese, Parmesan cheese, egg, and garlic powder in a bowl; mix until well combined. Press into a round circle on the parchment in the air fryer basket.
Heat the air fryer to 350 degrees F (175 degrees C). Fry bread for 10 minutes. Remove. Serve garlic cheese bread warm, but not hot.
