Browser less script/bot that will add to cart and checkout

I need a script/bot for Adidas.com. The script/bot would be browser less and just add product to cart with different accounts I input. I also have add to cart links for the product, (the add to cart links will include product id for each size) so i need to be able to input the atc link in script/bot and then run it browser less. ***the script will just have to be able to implement the (add to cart links) i have and then got to cart and checkout. the script would be a browser less.