Home » How to buy NFT on OpenSea with a credit card?

How to buy NFT on OpenSea with a credit card?

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Buying an NFT is very simple and not much different from a regular online store transaction. All you need is a credit card and a MetaMask wallet.

Remember that most of the images sold on OpenSea have no use. Experts say that as much as 97% of NFT projects will fail shortly.

Today, NFT technology is developed by large corporations and perhaps it will start being used wisely soon.

If you are just starting your adventure with web3 and want to buy an NFT for educational purposes, this guide is for you.

When buying your first NFT, it is worth choosing the Polygon blockchain. Thanks to this, we will avoid high transaction fees.

For this guide, we will use the NFT demo collection created by tripoffice.com

Battleship Game is a collection of 20,000 unique boards with ships with no utility. This collection was created mainly for marketing and educational purposes.

Currently (19 March 2022) a picture from this collection costs 0.002 ETH. This is the lowest possible price of an NFT on opensea.io.

How to buy NFT on OpenSea? Step by step

Let’s buy the first NFT on OpenSea

OpenSea.io is the world’s largest NFT marketplace. This website is very intuitive and easy to use. The only thing that distinguishes it from a regular store is the login method. We need to have a cryptocurrency wallet.

Install the MetaMask wallet in your browser.

You can log in to opensea using any cryptocurrency wallet. We choose Metamask because it is the most popular and completely free.

The MetaMask wallet is a plug-in for your web browser, its installation is very simple. We go to the site, download the wallet and follow the instructions, mainly clicking “Next” button.


MetaMask is a proven wallet used by many people interested in the market of cryptocurrency. It is completely safe and your browser data is protected. You can find a very good video about MetaMask installation on Evan Does Tech YouTube channel here.

Log in to OpenSea.

After opening the opensea.io website, we log in and connect our account with the MetaMask wallet.

Then click on the wallet icon in the upper right corner and go to the “Add Funds” section.

ATTENTION: We are buying an Ethereum (Polygon) token. Thanks to it, we can purchase NFTs without high transaction fees. The minimum account top-up is USD 30.

Then go to your selected collection and filter the NFT images by price (Price: Low to High). If the image itself is not that important for you, it’s always a good idea to buy the cheapest NFT available.


The further NFT purchase process is the same as in a traditional online store. The only difference is signing transactions with the MetaMask wallet.

After the transaction is completed, the pictures representing NFT tokens appear on the user’s profile.

You can also find proof of ownership directly on the blockchain at polygonscan.com