In a small bowl, mix softened cream cheese, powdered sugar, and vanilla extract until smooth and combined.
Place a small teaspoon of the cream cheese filling in the center of each wonton wrapper.
Dip your finger in water and run it along the edges of the wrapper to seal, then fold into a triangle shape.
Press the edges firmly to seal the filling inside, ensuring no gaps for the cream cheese to leak out.
Lightly spray the air fryer basket with cooking spray, then arrange the wontons in a single layer without touching.
Spritz the tops of the wontons lightly with oil spray for extra golden color.
Air fry at 370°F for 6-8 minutes, flipping halfway through, until golden brown and crispy.
Remove carefully and let cool for 2 minutes before serving to let the filling set.