What are Minecoins and how do I buy them?
Minecoins are the Minecraft Marketplace’s virtual currency which can be used to purchase content from the store, rather than paying directly from your credit or debit card. Coins are tied to your Xbox Live account and kept safe in a virtual wallet, available for use on all Bedrock devices. It also ensures that content is set to a single price globally, with no map being more expensive in one country than another.
Minecoins can be purchased by clicking the + sign next to your gamertag on any Marketplace page; just choose the amount you wish to purchase and you’ll be directed to your devices app store where you can buy coins securely.
You can also purchase prepaid codes from selected stores such as GAME or Best Buy that can be redeemed over at Minecraft.net.