Slice the chicken breasts into fillets or cutlets and gently pound any thick areas to ensure even thickness.
Combine oil, salt, and pepper and thoroughly coat the chicken pieces with this mixture.
In a separate bowl, mix together the fine breadcrumbs, flour, garlic powder, onion powder, dried thyme, dried basil, salt, and chili powder or paprika.
Press each piece of chicken firmly into the breadcrumb mixture, coating both sides evenly.
Arrange the coated chicken fillets in the air fryer basket, leaving space between each piece.
Set the air fryer to 200 °C (390 °F) and cook the chicken for 8 to 9 minutes.
Turn the chicken pieces over and air fry for another 4 minutes until the coating is crisp and the chicken is cooked through.
Allow the chicken to rest for 5 minutes before slicing and serving.