Exchange Centralizada (CEX)
Uma plataforma de câmbio de criptomoedas operada por empresa que custodia fundos e combina ordens via livro de ordens central.
Principais CEXs: Binance, Coinbase, Kraken, OKX. Receita: taxas de trading (0,1–0,5%), spread, taxas de listagem. CEX vs DEX: CEX — alta liquidez, suporte a fiat, mas risco de custódia.
graph LR
Center["Exchange Centralizada (CEX)"]:::main
Rel_cex["cex"]:::related -.-> Center
click Rel_cex "/terms/cex"
Rel_proof_of_stake["proof-of-stake"]:::related -.-> Center
click Rel_proof_of_stake "/terms/proof-of-stake"
Rel_singularitynet["singularitynet"]:::related -.-> Center
click Rel_singularitynet "/terms/singularitynet"
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🧒 Explique como se eu tivesse 5 anos
Uma [CEX](/pt/terms/cex) é como um banco e uma bolsa combinados, mas para cripto. Você deposita seu [Bitcoin](/pt/terms/bitcoin) neles (eles guardam). Se o 'banco' falir, seu dinheiro pode sumir — exatamente o que aconteceu com a FTX em 2022.
🤓 Expert Deep Dive
❓ Perguntas frequentes
What is the main risk of using a CEX?
Custodial risk: you do not control your private keys. If the exchange is hacked, goes bankrupt (like FTX in 2022), or freezes withdrawals, you may lose access to your funds.
What is Proof-of-Reserves?
A Proof-of-Reserves (PoR) is a cryptographic attestation that a CEX actually holds the assets it claims to hold for users. After FTX collapsed, it became a standard practice for exchanges to publish Merkle-tree-based PoR reports. However, PoR only proves assets, not liabilities.
What is the difference between a maker and a taker on a CEX?
A market maker places a limit order that sits on the order book, adding liquidity. A taker executes against an existing order, removing liquidity. Makers typically pay lower fees than takers.