Beanstalk is an Ethereum-based permissionless and algorithmic fiat stablecoin protocol. It is used for issuance of BEAN stablecoin pegged at 1:1 ratio to the US Dollar.  Beanstalk is different from fiat and crypto-collateralized stablecoin protocols as it works based on a credit-based price stability model. The users of the Beanstalk protocol are constantly rewarded with economic incentives for issuing credit or providing liquidity to the protocol and thus maintaining BEAN’s price stability.