In a medium bowl, using your hands, mix ground chicken, panko, cilantro, egg, garlic, chipotle chiles and sauce, oregano, salt, and pepper until combined. Roll into 1" balls.
Lightly coat an air-fryer basket with cooking spray. Working in batches, arrange meatballs in basket, spacing about ½" apart. Cook at 370°, turning a few times, until outsides of meatballs are golden brown and centers are cooked through, about 6 minutes.
Arrange meatballs on a platter. Spoon salsa verde over top or serve alongside for dipping.