Place the chicken breasts on a cutting board and use a sharp knife to cut a pocket into the side of each chicken breast.
Drizzle both sides of the chicken with oil.
Add the paprika, 1/2 teaspoon salt, garlic powder, and onion powder to a small bowl and stir to combine. Sprinkle evenly over both sides of the chicken.
Add cream cheese, Parmesan, mayonnaise, spinach, garlic, red pepper and remaining 1/2 teaspoon of salt to a small mixing bowl and stir well to combine.
Stuff the mixture into each chicken breast.
Place the chicken breasts in a greased air fryer basket in a single layer. You may need to work in batches, depending on the size of your air fryer. Keep cooked chicken in a low oven, covered in foil, while the next batch cooks.
Air fry at 375 degrees for 15-20 minutes or until a thermometer reads 165 degrees in the thickest portion of the chicken.
Notes
When measuring the temp of the chicken, be sure to get the thermometer in the meat and not the filling for an accurate reading.