Pat dry the sea scallops to remove any excess moisture. Season them with sea salt and black pepper, then brush with one tablespoon of melted butter.

Spray the air fryer basket with cooking spray and place the seasoned scallops in a single layer.

Set the air fryer to 400°F and cook the scallops for 5-7 minutes, turning them halfway through the cooking time. The scallops are done when they are slightly golden and firm to the touch.

Once cooked, remove the scallops from the air fryer. Brush them with the remaining melted butter, sprinkle with chopped parsley, and serve with lemon slices.