How to make the download outputs map tiles as Web Map Tiles Service (WMS)

[PongManao]

Actually, I'm a newby working with Map using Cesium. I found that Cesium needs a map provider as WMS and I've tried MapTileDownloader and it works great except it cannot output images as Web Map Tiles Service (WMTS or WMS) which is the format that Cesium supports.
I cannot find any software that can export map tiles in WMS as well.
So, how can we add an option to the downloader the tiles for WMS?
Thanks.