Amazon Seller Central Listing API

Hi all !

I am developing a listing software to upload products to Amazon Seller Central Store. I am looking for the API that would allow me to get all Amazon store categories,m subcategories and product types. So that the admin can select from available lists accordingly and list their product.

The Amazon MWS documentation doesn't provide with the appropriate categorization and parent/child structure.

Please can you advise on this and help to move forward.