is there any way i can get to the win64 folder so i can add server API for my ark server

I direct your attention to the FAQ on the website that mentions these are Linux Steam servers.

To run ARKAPI you would need a licensed copy of Windows per server, which gets extremely costly.

If you're looking for a LOT of the ARK API functions, many users find success with TCsAR (Timmy Carbine's Auto Rewards)

FAQ Link for those curious:

https://arkservers.io/help/faq/arkapi

oh damn ok i was hoping i could but ok thank you so mcuh

so i put in that website and it says i cant get it at all

Right.... That website is part of this website, which has the answer to your original question as it's part of the "Help/FAQ" (Frequently Asked Questions) section.

The Mod I mentioned would require you to use the Mod tab on your own server to find, which is something I can't easily link for you without being an admin on your account.