Preheat your air fryer to 400°F for five or six minutes. While it preheats, you can gather all your ingredients together.
Place the sweet potato strips, canola oil, garlic powder, paprika, salt, and cayenne in a large bowl; toss to evenly coat. You can scale the amount of cayenne up or down according to your heat preference.
Arrange the fries in an even layer on a greased tray in the air-fryer basket.
Cook until the sweet potato fries are lightly browned, 10 to 12 minutes, stirring once halfway through cook time. Serve immediately.
