What Is DeFi (Decentralized Finance)?
DeFi refers to a category of crypto applications that recreate traditional financial services — lending, borrowing, trading, derivatives — using blockchain-based smart contracts instead of centralized intermediaries.
Core DeFi primitives:
- DEXes (Decentralized Exchanges): Uniswap, Curve, dYdX. Trade tokens without an exchange holding your funds. - Lending: Aave, Compound. Lend or borrow crypto with automated interest rates. - Stablecoin issuance: MakerDAO (DAI). Mint stablecoins backed by collateral. - Yield aggregators: Yearn, Convex. Automated yield strategies.
DeFi advantages: permissionless access, transparency (everything on-chain), composability (protocols can integrate). Disadvantages: smart contract risk (bugs can drain funds), slower than centralized exchanges, frontend complexity.
For active traders, DEXes are increasingly competitive with centralized exchanges on long-tail tokens. The major DEXes have on-par liquidity for top-tier assets and offer access to thousands of tokens you'd never find on Coinbase.
Related terms
- Stablecoin — A cryptocurrency designed to maintain a stable value, usually pegged to USD.
- Cryptocurrency Exchange — A platform for trading cryptocurrencies — either centralized (CEX) or decentralized (DEX).
- Liquidity — The ease with which an asset can be bought or sold without significantly affecting its price.