Once you have deployed your smart contract, you can add your collection to OpenSea and other NFT marketplaces. The flow is pretty much the same on all of them.

- In the profile drop down menu, select “My Collections”.

- Click the “…” menu and select “Import an existing smart contract”.

- Select the first or second option, depending on whether your collection was deployed on Ethereum Mainnet or a Testnet. Most of the time you will be selecting the first option.

- Add your contract address.