In a medium bowl, whisk together egg, mayonnaise, Dijon mustard, Worcestershire sauce, lemon juice, hot sauce, Old Bay seasoning, salt (if using), and chopped parsley.
Gently fold in the crab meat.
Add cracker crumbs or breadcrumbs gradually, mixing just until the mixture holds together.
Form the mixture into 6 equal patties.
Place patties on a plate or baking sheet, cover, and refrigerate for 1 hour.
Preheat the air fryer to 375°F (190°C).
Spray both sides of the crab cakes with cooking spray.
Optionally brush tops lightly with melted butter for extra flavor.
Arrange crab cakes in a single layer in the air fryer basket without overcrowding.
Cook for 14–18 minutes until golden brown and internal temperature reaches 160–165°F.
Cook in batches if necessary.
Serve warm with lemon wedges and your favorite dipping sauce.