High level
There is a TON Center API method that retrieves metadata.Low level
To get full NFT metadata:- Resolve the NFT item address by index from the collection (if needed) using get_nft_address_by_index(index).
- Get the item’s individual content from the item contract using get_nft_data().
- Get the full metadata from the collection contract using get_nft_content(index, individual_content).