What They Are and How To Choose

What Are Cryptocurrency Exchanges?

Cryptocurrency exchanges are online platforms that enable users to buy and sell cryptocurrency.

When cryptocurrency was first introduced, you had to manually enter a command in a terminal to send a coin to someone. Eventually, user interfaces were designed to make it easier to access cryptocurrency. As crypto grew in popularity, businesses built exchanges to make it easier for everyday users to buy and trade.

Cryptocurrency exchanges now work similarly to a broker, giving you the tools to trade, buy, and sell cryptocurrencies like Bitcoin, Ethereum, and Tether.

Be Cautious When Choosing an Exchange

The first thing to remember when searching for digital currency exchanges—and when considering any aspect of cryptocurrency investing—is that scams and fraud are out there and can have a genuine impact on individual investors.

Mt. Gox, one of the earliest digital currency exchanges and once one of the most popular, collapsed after a hack. Others have also been hacked or otherwise compromised; even exchange owners and executives have been caught stealing clients’ funds (FTX).

How can one ensure that a particular cryptocurrency exchange offers a legitimate service? In the U.S., you can check whether an exchange is registered with regulators or operates as a licensed money services business.

Where to Search for Crypto Exchanges

First, check CoinMarketCap’s or CoinGecko’s list of cryptocurrency spot exchanges. These aggregator services rank exchanges on traffic, liquidity, trading volume, and legitimacy or trust to help viewers decide where to trade. These sites will have summaries of each exchange, supported cryptos, whether they are centralized and registered, decentralized, and more.

You can also check whether the exchange is registered with regulators like the Financial Crimes Enforcement Network (FinCEN). This will give more details on what it is registered as, such as a money services business or money transmitter.

The image below is Kraken’s money services business registration with FINCEN. The exchange also reports to the Wyoming Division of Banking.

The next image shows the search for Coinbase on FINCEN’s website and lists all of its business entities and where they are licensed to conduct business.

By using aggregation services and regulatory searches and then comparing the results to website information and how they claim to be regulated, you can generally learn whether exchanges are legitimate or not.

The next step is to decide which type of exchange you want to use.

Centralized Exchanges

Centralized exchanges are usually businesses that operate as intermediaries for traders. They facilitate trades and offer many other financial services. Traders who prefer more anonymity may not like using centralized exchanges because they are often required to comply with anti-money laundering laws, which means verifying identities and reporting to regulators.

However, there are many reasons you should use centralized and registered exchanges. First, too many investors have been fooled by fake exchanges. Second, without knowing where the exchange is based, you won’t have a good sense of the legal ramifications of your investments. Third, should your account get hacked, it is much easier to address these issues with the exchange and any regulators that may need to be involved if the exchange is registered and operates transparently.

Fourth, many centralized exchanges carry crime insurance, use banks and custodians to store client funds and cryptocurrency private keys, and are regularly audited. For beginners, centralized exchanges are often the easiest and safest place to start.

Decentralized Exchanges

Decentralized exchanges (DEXs) are blockchain-based platforms that allow traders to connect directly to each other for peer-to-peer trading. The only third parties involved are the entities that develop, host, and secure the website. Trades are generally conducted using smart contracts, which automate the trading process to remove the need for trust. CoinGecko also has a list of decentralized exchanges (actually, their native tokens), which includes UniSwap, Jupiter, dYdX, and PancakeSwap. To use these exchanges, a user generally only needs to have a wallet and connect it to the exchange by entering its address, and they can start trading.

Some DEXs exchanges use automated market makers (AMMs), which are programs that provide liquidity through user funds, and prices are determined by algorithms. Other DEXs use order-books, where traders create bid and ask orders. Many of these exchanges run on Ethereum, but there are other blockchains capable of running decentralized exchanges, such as Avalanche, Arbitrum, and Polygon.

Important Cryptocurrency Exchange Tips

When it comes to cryptocurrencies and exchanges, reputation counts. Before you even go so far as to create an account or connect your wallet, take time to research the exchange you’re considering thoroughly.

What do other users say about the exchange? What does the exchange say about itself? Have there been issues with security in the past? If so, how has that exchange addressed those problems?

In your search, dig deep; look for stories that the exchange would not want potential customers to see. There may be news stories about the exchanges or legal actions brought against them by regulators that might demonstrate an exchange’s ethics and practices.

At this point in cryptocurrency’s evolution, there is no need to choose an exchange blindly—there are more than 250 to choose from, and the more reputable and popular are well-known, reviewed, and documented.

Higher Security Is Better

Legitimate centralized exchanges usually require identity verification (KYC), which helps them comply with regulations and reduce fraud. If it’s too easy to generate an account, this suggests that the exchange is not following the rules. Decentralized exchanges are a different story, so it helps to learn more about their issues before using their services.

Regardless of the exchange you choose, keeping most of your digital assets in an offline storage service like a cold wallet, which is often an option for staked coins, is a good idea. Exchanges should also not keep any more assets accessible than are required for liquidity purposes.

Beware of Fees and Pairs

You’ve sifted through the pool of potential exchanges and found some that appear to have excellent reputations, stellar histories concerning security, and no history of hacks or scams. That’s a great start, but now you’ll need to consider how each exchange will affect your daily investing.

Two major factors that distinguish different exchanges are the fees and the currency pairs they offer.

Learn about the fees and consider how they would impact your investing based on your style. Do you plan to be highly active and make daily transactions? If so, perhaps consider an exchange with a lower per-transaction fee. Additionally, you should be aware of the blockchain transaction fees you’ll need to pay, which are paid to blockchain participants for work done on the chain.

Another important consideration is the cryptocurrency pairs that an exchange offers. Coinbase, one of the world’s most popular and successful exchanges, offers more than 275 digital assets on its exchange, with 340 available in tradeable pairs as of March 2026.

If you’re looking for obscure altcoins to trade, you may want to look elsewhere. However, Coinbase, Binance, and other popular exchanges are considered excellent in terms of security, user experience, and other trading considerations. Make sure that you keep in mind how your own investment practices will relate to the features (and limitations) of any exchange you might use.

The Bottom Line

Cryptocurrency exchanges are the main gateway into crypto markets, but they’re not all created equal. Choosing the right one means balancing convenience, fees, security, and the level of control you want over your assets.