Does a smart USB plug/adapter not exist?

A lot of cheap gadgets these days are powered from a USB port (think small lamp, LED lights, mini fan, humidifier etc.). I want to buy a power adapter for them, but also turn it on/off via my smart home. So what I currently have to do is plug a smart plug into the wall, then plug a regular USB adapter into that smart plug, then connect my device. Can I not cut out one of the two? I've been looking far and wide but it doesn't seem like they actually make them.