What is a CEX in crypto?
A CEX, short for centralized exchange, is a crypto exchange run by a company that holds your money and crypto and matches buyers with sellers. You open an account, verify your identity, deposit euros by bank transfer, and trade on the company’s platform, much like a broker for shares. Most people buy their first crypto on a CEX, and in the EU it must hold a MiCA licence to serve you.
What is a CEX in crypto?
A CEX in crypto is a centralized cryptocurrency exchange: one company operates the platform, keeps user funds in its wallets and bank accounts, and runs the order book where trades are matched. The company acts as the trusted middleman, the same role financial institutions play in traditional finance.
That’s the key difference from a decentralized exchange (DEX), where you trade directly from your own wallet through smart contracts and no company holds your coins. On a CEX, the exchange holds your crypto on the user’s behalf, which makes it easier to use, but it also means you have to trust that company.
Note that “CeX” is also the name of a UK retail chain for second-hand electronics. In crypto, CEX always means a centralized exchange.
How does a centralized exchange work?
A centralized exchange works like an online broker for crypto. Here is what using one looks like:
- Open an account. You sign up with your email and pass KYC verification: ID document, selfie and questions about your money.
- Deposit funds. Users deposit funds in fiat currencies by bank transfers such as SEPA, or by card, or send crypto from another wallet. These fiat on-ramps are the main reason people use a CEX.
- Place an order. You buy or sell on the order book, where the exchange is matching trades between buyers and sellers. Market orders fill instantly at the best available price; limit orders wait for your price.
- The exchange holds your assets. Your balance is a claim on the exchange. It keeps most crypto assets in cold storage and some in hot wallets for withdrawals.
- Withdraw. You send crypto to your own wallet, paying network fees and often a withdrawal fee, or sell for euros and withdraw to your bank account.
A worked example in euros
Say you deposit €500 by SEPA transfer (free at many exchanges) and buy bitcoin with a market order. If the exchange charges a 0.25% trading fee, you pay €1.25 and get €498.75 worth of bitcoin, minus a small spread. If you then move the bitcoin to your own wallet and the exchange charges a fixed withdrawal fee, that fee applies whether you withdraw €50 or €5,000. Check our guide to trading fees before you pick a platform.
Features of a centralized exchange
Centralized exchanges offer more features than most decentralized ones, which is why they handle most crypto trading volume. Common features include:
- Spot trading in hundreds of crypto to crypto and crypto-to-euro pairs.
- High liquidity. Deep liquidity from many users and professional market makers means tight spreads, even for larger trades.
- Advanced trading tools such as limit and stop orders, charts and an API for high volume traders.
- Margin trading and derivatives, on some platforms. These are high-risk; most retail traders lose money with leverage.
- Customer support and educational materials, helpful for new cryptocurrency users.
- Security measures such as two factor authentication, withdrawal address whitelists and withdrawal limits for new accounts.
CEX vs DEX: the key differences
The key differences between a CEX and a DEX are custody, regulation and ease of use. Here’s how centralized and decentralized exchanges compare:
| CEX (centralized exchange) | DEX (decentralized exchange) | |
|---|---|---|
| Who holds your funds | The exchange | You, in a non custodial wallet |
| Account and identity verification | Required | Usually none |
| Euro deposits | Yes, by bank transfer or card | No, you need crypto first |
| How trades work | Order book run by the company | Smart contracts, often an automated market maker |
| Token choice | Curated, licensed listings | Almost anything, including rare tokens and scams |
| Help if things go wrong | Customer support, complaints procedure, regulator | None |
| Main risk | The company fails, is hacked or freezes accounts | You make a mistake or use a faulty contract |
Unlike decentralized exchanges, a CEX can freeze an account, block a withdrawal or ask for documents. That’s frustrating, but it’s also why a regulated exchange can help you when you lock yourself out. A DEX gives you user control and full control of your private keys, but you’re on your own. Read more about decentralized exchanges and how an automated market maker works.
Risks of using a centralized exchange
The biggest risk of a centralized exchange is that you depend on the company: if it fails, misuses customer money or gets hacked, your funds are at risk. “Not your keys, not your coins” is the crypto way of saying it.
History has plenty of examples. Mt. Gox collapsed after losing customers’ bitcoin in 2014, and FTX went bankrupt in November 2022 after customer funds were misused. Exchange hacks have hit many platforms over the years.
Other risks to weigh against your risk tolerance:
- Account freezes. An exchange can restrict your account during checks or disputes.
- Withdrawal limits and fees. These can make it slow or expensive to move your crypto out.
- Phishing. Fake exchange websites and support accounts target crypto users. Always use the official app and two factor authentication.
- No compensation. EU investor compensation schemes don’t cover crypto-assets.
Many people use a CEX to buy and sell, then move long-term holdings into self-custody, such as a hardware wallet.
Why a MiCA licence matters for a CEX in the EU
A MiCA licence matters because it’s the line between a regulated exchange and one you shouldn’t use from the EU. Since 1 July 2026, only crypto-asset service providers authorised under MiCA may serve EU residents.
A MiCA-licensed CEX must keep your crypto separate from its own assets, meet capital and governance rules, handle complaints, publish its fees and follow anti-money laundering rules, including the travel rule. One licence covers the whole EU, so a licensed exchange in one country can passport its services to residents in multiple jurisdictions across the EU.
Licence status differs a lot between well-known exchanges. Bitvavo (AFM, Netherlands), Bitpanda (FMA, Austria) and Crypto.com (MFSA, Malta) hold MiCA authorisations. Binance holds none, and since 1 July 2026 EU residents can no longer sign up there; see our Binance review. You can check any platform in the ESMA register or your national regulator’s list, and our methodology explains how we weigh licences.
How to choose a centralized exchange
To choose a centralized exchange, start with the licence, then compare costs and features for what you actually want to do. A user friendly app matters more than advanced trading features at the start of your crypto journey.
Check four things: a MiCA licence, euro deposit options and trading fees, the coins you want, and how easily you can withdraw to your own wallet. Our guide to choosing your first crypto exchange takes you through it.
The bottom line
A CEX is a company-run crypto exchange: the easiest way to turn euros into crypto, with customer support and, in the EU, a regulator watching. The catch is trust. Use a MiCA-licensed exchange, secure your account, and don’t leave more on it than you need for trading.
Related terms
Questions people ask
What does CEX mean in crypto?
CEX stands for centralized exchange: a crypto exchange run by a company. You open an account, deposit euros or crypto, and the company holds your funds and matches your trades. It's not related to the CeX retail chain that sells used electronics.
What are examples of centralized exchanges?
Well-known centralized exchanges include Coinbase, Kraken, Bitvavo, Bitpanda, Crypto.com and Binance. Their status for EU residents differs: Bitvavo, Bitpanda and Crypto.com hold a MiCA licence, while Binance does not and no longer accepts new EU customers.
Which is better, DEX or CEX?
A CEX is easier for beginners: you can deposit euros, get customer support and use a licensed, supervised platform. A DEX gives you full control of your keys and access to more tokens, but no help desk and more ways to make costly mistakes.
Is Coinbase a DEX exchange?
No. Coinbase's main exchange is a centralized exchange: the company holds customers' funds and runs the order book. Coinbase also offers a separate self-custody wallet that can connect to decentralized exchanges.
Can I trade anonymously on a centralized exchange?
No licensed centralized exchange lets you trade anonymously. In the EU every CEX must verify your identity before you can deposit euros or withdraw, and it must send sender and receiver details with crypto transfers.