You can make a small service embeddable in other sites to sell items from your collection. It's easy, just use Rarible Protocol.
You will need to use the Rarible API to get information about items and orders, by default when you request an item you will immediately get information about the best available order. But you have many options and you can display any available orders, use getOrderByNFT endpoint.
To provide a purchase option for your users, use the following Rarible SDK Functions: wallet connect and buy. More information can be found here.
Updated 6 days ago