Preheat the air fryer to 400°F.
Peel the sweet potatoes and cut them into thin fries, about 1/4 inch thick.
In a large bowl, toss the sweet potato fries with olive oil, paprika, garlic powder, onion powder, salt, black pepper, and cayenne pepper until evenly coated.
Place the fries in a single layer in the air fryer basket, working in batches if necessary.
Cook for 15-20 minutes, shaking the basket halfway through to ensure even cooking.
Check for desired crispiness; if needed, cook for an additional 2-3 minutes.
Once done, remove from the air fryer and let cool slightly before serving.