Pat the zucchini sticks completely dry with paper towels to remove all excess moisture.
Set up three shallow bowls: one with flour, one with beaten eggs, and one with panko breadcrumbs mixed with Parmesan cheese, garlic powder, Italian seasoning, salt, and pepper.
Dredge each zucchini stick in flour, then dip in egg, and finally coat thoroughly with the breadcrumb mixture, pressing gently to adhere.
Spray the air fryer basket with cooking spray and arrange zucchini fries in a single layer, making sure they don't touch.
Spray the tops of the zucchini fries lightly with cooking spray and air fry at 400°F for 10-12 minutes, flipping halfway through, until golden brown and crispy.
Serve immediately with marinara sauce or ranch dressing for dipping.