Basis is a stable cryptocurrency protocol with an algorithmic central bank designed to remove volatility. It is designed to keep prices stable by algorithmically adjusting the supply, similar to how central banks buy and sell fiscal debt to stabilize purchasing power. When demand is increasing, the blockchain will create more Basis, with the expanded supply designed to bring the Basis price back down. Conversely, when demand is decreasing, the blockchain will buy back Basis, with the contracted supply designed to restore the Basis price. Following intervention by the U.S. SEC, Basis was shut down in December 2018.