In a small bowl, mix the softened butter, garlic powder, salt, pepper, rosemary, thyme, and paprika until combined.
Pat the turkey breast dry with paper towels. Carefully loosen the skin and spread half of the herb butter mixture underneath. Spread the remaining butter on top of the skin.
Place the turkey breast in the air fryer basket, skin side up. Cook for 30-45 minutes, or until an instant-read thermometer registers 165°F (74°C) in the thickest part of the meat.
Let the turkey rest for 10 minutes before slicing and serving.
Notes
For an extra crisp skin, increase the temperature to 400°F (200°C) for the last 5 minutes of cooking.