UMA is an optimistic oracle (OO) that can verify any statement proposed on the blockchain. It tells smart contracts “things about the world” so contracts and markets asking for that data can be settled. The OO has been called “a human-powered truth machine” because it is flexible enough to handle ambiguity and expands what can be built in Web3.
UMA’s OO secures a diverse ecosystem of Web3 applications, including cross-chain bridges, insurance protocols, prediction markets, and customizable DAO tooling products.