What is ERC-4337 in cryptocurrencies?

ERC-4337 is an Ethereum standard that provides an account abstraction in the protocol without changing the consensus. The standard was launched on Ethereum in March 2023, allowing transactions with tokens and the creation of contracts using a single account. This makes it possible to develop a new generation of cryptocurrency wallets with a user-friendly interface, which contributes to the spread of cryptocurrencies. Abstraction technology allows you to combine the account of an external owner with a smart contract account.