Preheat the air fryer to 400°F (200°C).
Dip the zucchini sticks into the egg whites.
Mix breadcrumbs with garlic powder, onion powder, salt, and pepper.
Coat zucchini in the seasoned breadcrumbs.
Place in the air fryer basket in a single layer. Spray with olive oil if desired.
Air fry for 8-10 minutes until golden brown and crispy, shaking halfway through.