DEX
DEX: Decentralized Exchange
A DEX is a cryptocurrency exchange that operates without central authority through smart contracts. It's like a marketplace where buyers and sellers trade directly without a middleman.
A decentralized exchange (DEX) is a cryptocurrency trading platform that facilitates peer-to-peer trading through smart contracts without requiring a central operator or intermediary. Users maintain control of their funds throughout the trading process.
How DEXs Work
Smart contract execution automatically matches and executes trades according to predetermined rules without human intervention.
Liquidity pools provide trading liquidity through user-contributed token pairs rather than traditional order books.
Non-custodial trading allows users to trade directly from their wallets without depositing funds to exchange-controlled accounts.
[IMAGE: DEX architecture showing peer-to-peer trading through smart contracts with liquidity pools]
Real-World Examples
- Uniswap pioneering automated market maker model for Ethereum-based token trading
- PancakeSwap providing DEX functionality on Binance Smart Chain with yield farming features
- dYdX offering advanced trading features including margin and perpetual contracts
Why Beginners Should Care
Fund control since users never give up custody of their cryptocurrency to exchange operators.
Global access without geographic restrictions or account approval processes required by centralized exchanges.
Transparency from open-source smart contracts that show exactly how trades are executed and fees calculated.
Related Terms: Smart Contract, Liquidity Pool, AMM, Trading