What Is a DEX?

A DEX (decentralized exchange) is a trading platform that runs on-chain through smart contracts. Users swap tokens directly from their wallets with no custodian, no account registration, and no identity verification required.

How a DEX Works

Most DEXes use an automated market maker (AMM) model instead of order books. Liquidity pools hold paired tokens, and prices adjust automatically based on the ratio of tokens in the pool. Users trade against the pool rather than against other traders. Anyone can deposit assets into a pool and earn a share of the trading fees generated.

DEX vs CEX

A CEX (centralized exchange) holds your funds in custody and requires identity verification. A DEX requires only a wallet connection. The trade-off is that CEXes typically have deeper liquidity and customer support, while DEXes give you direct control of your funds and access to any token without KYC. On Solana, DEXes like Raydium and Orca handle the majority of on-chain trading volume.

Risks to Know

Smart contract bugs in a DEX can lead to fund losses. New liquidity pools may be rug pulls if the developer removes the paired asset. Price impact is higher on low-liquidity pairs, meaning large orders move the price against you. Always verify the token contract address before swapping, and check pool depth before trading.

FAQ

What does DEX stand for?

DEX stands for Decentralized Exchange. It is a trading platform that runs on-chain through smart contracts, letting users swap tokens directly from their wallets.

Do I need an account to use a DEX?

No. A DEX requires only a wallet connection. No registration, email, or identity verification is needed.

What is the difference between a DEX and a CEX?

A CEX (centralized exchange) holds your funds and requires ID. A DEX is non-custodial and open to anyone with a wallet, but you are responsible for your own security.

Is trading on a DEX safe?

Established DEXes with audited contracts are generally safe. The main risks are smart contract bugs and new-pool rug pulls where the developer drains liquidity shortly after launch.

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