post https://withpaper.com/api/2022-08-12/paper-managed-contract//batch-upload
This API endpoint adds supply to a Paper-managed contract for thirdweb NFT Drop. This API is not intended for thirdweb Edition Drop or contracts not managed by Paper.
Supply must be added before a buyer can purchase NFTs from a checkout. This endpoint may be called multiple times.
Adding supply can also be done on Developer Dashboard: Contracts.