Euler Finance is a lending market based protocol with advancements to listing and risk management process. Euler has the largest array of crypto assets through its permissonless listing process and enables many possibilities for lending and borrowing.
Euler Finance advances the lending markets by supporting more complex markets. Unlike previous lending markets, any asset can be listed on Euler as long as it has a liquidity on Uniswap v3. This makes Euler one of the largest lending markets by asset types. To mitigate the risk of differing assets Euler lists all assets into one of three tiers; these determine what functions are available to that token.