When you organize an event or manage a community space, it’s great to be able to give participants an NFC card, tag or wristband for access control. Wouldn’t it be cool if you could also use that NFC tag as a crypto wallet that people could easily top up and tap to pay? Solution  With Account Abstraction, we can now turn those NFC tags into a wallet that can hold any asset. People can send tokens to their NFC tag and tap to pay at a series of whitelisted stations (to avoid abuse). It allows you to do simple transactions in stablecoins or any other token. It can be used at events such as ETHGlobal to manage payments and to allocate finite resources to make sure that these are distributed fairly (e.g. swags). It could also be used as a way to reward people (e.g. earn tokens by doing some actions at the event, tap your wristband to receive the tokens). Tokens can represent resources such as: Food Drinks (e.g. coffee machine) Meeting rooms Workshop access Print credits .. Next to the NFC Wallet, we implemented a native NFC payment terminal/PoS application (using Flutter) that can easily withdraw assets from the NFC wallet. For security reasons, the withdrawal devices must be whitelisted to withdraw funds from the cards.