Toss shrimp with oil, chili powder, garlic powder, cumin, onion powder, salt and pepper in a bowl. Place shrimp in the air fryer basket.
Air fry at 400ºF/200ºC for 5-6 minutes or until shrimp is cooked through. For crispier shrimp, cook for an additional minute or two.
For warm or crispy tortillas, assemble tortillas with shrimp, cabbage (optional), and cheese (optional). Place tacos in the air fryer basket and air fry at 400ºF/200ºC for 1 minute to warm tortillas. Air fry at 400ºF/200ºC for 2-3 minutes for crispy taco shells.
Remove tacos from the air fryer, add the toppings and serve.