Tiktok api cdn downloader without watermark (advanced) Read desc. before applying

I need someone who is able to create an api that can download direct from tiktok cdn no watermark. There are many on github that download from another downloader but I want direct access to CDN so this will require research.

examples that are taking off existing downloaders: (I want direct download)
https://github.com/krypton-byte/tiktok-downloader
https://github.com/hansputera/tiktok-dl