7 Best Altcoin Exchange to buy Altcoins with USD instantly 2025
With the surge in altcoin investments, the need for reliable platforms to buy, sell, and trade altcoins has never been greater. As more investors flock to this exciting market, the popularity and usage of top altcoin exchanges have soared.
When I mention the best altcoin exchange, I’m referring to a carefully curated list of the most reputable and widely used platforms trusted by thousands of crypto enthusiasts worldwide.
Today’s cryptocurrency landscape is brimming with promising altcoins — many with the potential to multiply your investment a thousandfold in the near future. If you’re looking to invest your hard-earned money wisely, it’s crucial to choose both the right cryptocurrencies and the best exchanges to maximize your returns.
To help you get started, I’ve compiled a list of the 7 best altcoin exchanges where you can buy altcoins with USD instantly. While there are many exchanges available, not all deliver the same quality of service, security, or user experience. Each platform comes with its unique advantages and drawbacks.
My selection process for these leading altcoin exchanges is based on several critical factors:
– User-friendly interface
– Variety of supported altcoins
– Payment options
– Transparent deposit, withdrawal, and trading fees
– Strong reputation and robust security measures
– Advanced trading features
– Global accessibility
– Positive user feedback
For investors, especially those new to the space, choosing a secure and trustworthy platform is essential for peace of mind and long-term success. That’s why, after extensive research and personal experience, I’ve created a comprehensive guide featuring the 7 best altcoin exchanges to buy altcoins with USD (and Euro) — helping you make smart investment decisions with confidence.
Ready to explore your options? Dive into my expert picks below and start your crypto journey on the right foot!
7 best altcoin exchange list – Buy altcoins with USD
Detailed view of each exchange.
Let us now have a brief review of each platform, so we can decide the best among them.
1. Cex.io

Cex.io is a London-based renowned Cryptocurrency Exchange launched in the year 2013.
Cex.io stands first on my list of 5 Best Altcoin exchanges to buy altcoins with USD instantly.
Cex.io is a specialized altcoin trading platform for crypto traders.
Cex.io allows you to buy, sell, and trade Litecoin crypto, Ethereum, Bitcoin Cash, Ripple coin, Monero, Dash, Z-cash, Stellar, Bitcoin Gold, Omise Go, Gemini Dollar, and Dogecoin in (USD & Euro).
Cex.io also supports other fiat currencies like Euros, Pound, and Russian rubles.
It offers multiple payment options to buy altcoins with USD.
You can buy altcoins using a credit & debit card, bank wire transfer, and exchanging with Bitcoin or any other supported cryptocurrency.
Cex.io offers a maker-taker trading fee model “Maker” is the user who places a limit order request that sits on the open exchange book. A taker is a user who places a market order request that matches or crosses an order already on the book.


Cex.io charges 3.5% + 0.25% commission fees if you fund your cex.io account balance using the credit & debit card and zero commission if you fund using the fast bank transfer. In case, you buy bitcoins or altcoins directly using the debit card or net banking then Cex.io will charge an extra 7% service fee.
- Basic account holders can buy altcoins worth USD 500.
- The verified account allows a user to buy altcoins worth USD 100000 per day. To get your account verified you have to upload a government-issued id with a selfied holding it.
- There is also a ‘verified plus and Corporate account’ where there is no limit on buying altcoins with USD. You have to contact support to be a verified plus and corporate account holder
There are three types of accounts Cex.io supports, which set the buying & selling limit of the user.
Security of the exchange is of the highest standard with a very easy-to-use interface. Customer support generally replies within 24 hours as a key feature of the best altcoin exchange.
Why Cex.io is the best Altcoin Exchange
- One of the well established and renowned cryptocurrency exchange
- Easy to use interface
- Multiple payment options including wire transfer
- Support 11 best Cryptocurrencies
- Instant transactions with a blink of the eye
- Does allow to buy an unlimited sum of altcoins with USD
- A go-to exchange for the credit card users
Cons
- 7% fee if you buy altcoins directly using a credit & debit card
Check the real-time stats of Cex.io
CEX.IO EXCHANGE REVIEW-5 COMPELLING REASONS TO TRADE AT CEX.IO
2. Coinmama

Coinmama exchange is based in Israel and is one of the renowned cryptocurrency exchanges founded in the year 2013.
Coinmama exchange is second on my list of best altcoin exchanges to buy altcoins with USD instantly using a credit card & debit card or cash.
Coinmama offers very high liquidity and is tailor-made for large investors or crypto traders.
It allows buying altcoins worth 10000 USD per day and worth 20000 USD of altcoins in a month using a credit card & debit card (thanks to companies like Simplex, which have allowed exchanges to verify users with less risk, thus allowing the acceptance of credit cards rather than the old methods like Western Union)
The buying limit depends on the user account level
- An unverified user can buy altcoins worth 150$.
- Level 1 – Transaction limit increased to 10,000$
- Level 2 – Users can buy altcoins worth 50,000$. Requires valid personal ID and address proof
- Level 3 – Users can buy altcoins worth 1 million USD
- There is no limit to a level 3 verified user. To get level 3 verified, you should be level 2 verified and have to make a special request to the support (support@coinmama.com).
There are 8 Major Cryptocurrencies available to buy directly with USD on the Coinmama exchange.
The altcoins supported are Bitcoin crypto, Ethereum crypto, Litecoin, Ripple XRP coin, Cardano coin, Qtum, Ethereum Classic, and Bitcoin Cash.
In Fiat currencies, USD and EURO are supported.
There are multiple payment options available on the Exchange to buy Altcoins in USD, Like Credit card & debit card, SEPA, SWIFT, Western Union, and Cash.
Coinmama’s transaction fee is a little bit on the higher side. The coin prices you see on the exchange already include a 5.5% brokerage fee.
In case you want to buy altcoins with a credit & debit card, then Coinmama charges 5% extra. Thus, the coin exchange price is 10.5% more than the coin market price.
The transaction is swift and instant. The security of the exchange is top-notch.
Support replies within a day. The user interface of the exchange is super easy (The interface is updated with advanced trading tools)
In the case of buying altcoins with USD instantly with a credit card, there is no alternative to Coinmama Exchange in the cryptocurrency exchange industry
Why Coinmama is the best Altcoin Exchange
- Offer one of the highest buying limits per day
- Offers cash as the payment method
- Instant transactions.
- Fast customer support.
- A super easy user interface
- Updated trading interface with advanced tools
Cons
- The fee is on the higher side; you end up paying 10.9% more than the coin’s market price.
COINMAMA REVIEW-SAFEST PLACE TO PURCHASE BITCOIN & ALTCOINS INSTANTLY
3. Coinbase Exchange

Coinbase crypto exchange was founded by one Bitcoin millionaires, Brian Armstrong and Fred Ehrsam, in 2012 and is based in San Francisco, California.
Coinbase exchange is one of the renowned and one of the best bitcoin exchanges around.
The exchange supports more than 35 countries and has served over 20 million customers to exchange over $52 billion in top digital currencies like the best altcoin exchange.
Coinbase supports 23 cryptocurrencies.
- Bitcoin
- Ethereum
- Litecoin
- Bitcoin cash (BCH)
- Ripple (XRP)
- Dai
- EOS
- Stellar
- Tezos
- Ethereum Classic (ETC)
- Maker (MKR)
- Zcash
- Chainlink
- Ox
- Algorand
- Zilliqa
- Augur (REP)
- Basic Attention Token (BAT)
- Golem
- Decentraland
- Loom Network
- District Ox
- Civic
Coinbase is also a web wallet that provides its service in 190 countries.
Coinbase offers a wide range of payment options.
The altcoin exchange allows buying altcoins with USD using a credit card & debit card, bank transfer, SEPA, and Xfers transfer (only used in Singapore).
Coinbase charges a minimal fee per transaction 1.5 % to 3.9% varies according to payment methods used to buy altcoins.
Transactions made using credit & debit cards are charged the most
There is four account level on Coinbase exchange Level1, level 2, and level 3 usually take two minutes to get verified.
Level 4 can take about a week in verifier same as other exchanges. Upload government-approved ID, and Pan card along with bank account statement.
Weekly buying limits vary according to account level from $1,000 to $50,000.
The security of the exchange is very robust and the interface is user-friendly.
For beginners, it will take no time to get used to the platform, and the Coinbase exchange is the best place to make your first Bitcoin purchase with credit cards.
The exchange ranked third on the list of Best altcoin exchanges to buy altcoins with USD instantly.
Why Coinbase is the best Altcoin Exchange
- Established and reputed exchange
- Available in 30 countries to Buy altcoins with USD instantly
- High weekly buying limits for level 4 account holders
- Altcoins are insured in the wallet
- Low 3.99% fee to buy altcoins with USD via credit & debit card instantly
- Robust security
Cons
- Not available in every country to buy altcoins with USD instantly
- Buying Bitcoin and altcoins in India is not supported
Get a 10$ signup bonus after buying bitcoin or altcoins worth 100$)
Check Coinbase’s real-time statistics
4. Changelly exchange

Changelly is an instant cryptocurrency exchange based in Prague(Checkslovakia).
The exchange is clean with an easy-to-use interface, the best exchange rates, comparatively low fees, and hundreds of altcoins to buy.
So it checks all the boxes to fit in the list of best altcoin exchanges to buy altcoins with USD instantly.
It allows you to buy and exchange altcoins quite conveniently, like the best altcoin exchange.
It does this by aggregating and suggesting the best rates available directly on its platform.
It offers you the best exchange rate in comparison to other altcoin exchanges.
Changelly supports 180+ altcoins. Fiat currencies supported by Changelly are USD and EURO. Changelly Vs Shapeshift – Best Instant Cryptocurrency Exchanges 2023
You can buy Bitcoin and altcoins with USD or EURO instantly using a credit card & debit card.
Changelly allows you to convert one cryptocurrency to another cryptocurrency in no time.
You can deposit any cryptocurrency and can receive the payout in any other cryptocurrency supported by the platform.
Changelly only charges a 0.5% static trading fee when working directly on the market trading platform.
However, if you chose to buy altcoins with a credit & debit card then the fee may vary up to 15% on a bad day.
Because of the use of third-party payment services to process credit card transactions. Currently, Indacoin exchange provides this service to Changelly exchange.
No ID verification is required to use the platform. The Changelly interface is user-friendly and security is robust.
Customer support usually replies within 24 hours.
Changelly is available in almost every country on the planet including India and USA.
It is very easy to navigate on the platform. Transactions are instant.
Changelly without a doubt is one of the best altcoin exchanges to buy altcoins with USD instantly.
Why Changelly is the best Altcoin Exchange
- No ID verification is required to buy the altcoins
- The user interface is beginner-friendly
- Hundreds of altcoins to buy on the platform
- Low 0.5% static trading fee
Cons
- The fee varies for buying altcoins with USD using the credit & debit card
5. BitBay

BitBay was established in 2014 and is one of the best altcoin exchanges to buy altcoins with USD instantly in Europe.
The company is based in Poland and spearheaded by Sylwester Suszek (CEO).
A prominent personality in the finance world.
For Polish users, BitBay provides their Bitbay card which can be used for local transactions and purchases.
This card is tied to your BitBay account and is backed by MasterCard.
There are also features for paying daily bills or buying altcoins with SMS.
Altcoin supported by Bitbay is Bitcoin, LTC, Ether(ETH), Lisk, BCH, KzCash, Infinity economics, XRP, Game credits, and Dash.
Fiat currency supported by the platform is USD, EURO, and PLZ (Polish Zloty).
Credit & debit card is accepted to buy altcoins directly with USD and other Fiat.
Other options to fund the Bitbay accounts are wire transfer, SEPA, and Cryptocurrency.
BitBay has high buying limits. A user can buy up to 15000 EURO worth of altcoins with a credit & debit card without any ID verification. But if you are a MasterCard user, then you have to get your account verified. It is the best altcoin exchange
If you want to buy altcoins with a Wire transfer, then you can buy an unlimited amount of altcoins with or without ID verification. Transactions using cryptocurrencies are also unlimited.
BitBay uses the taker-maker fee model “Maker” is the user who places a limit order request that sits on the open exchange book.
A taker is a user who places a market order request that matches or crosses an order already on the book.
The taker fee for the website ranges from 0.25 to 0.43% and the maker fee runs around 0.17 to 0.30% per transaction.
The transaction fee would depend on the monthly trade volume.
You can read more about the complete list of the fee schedule here.
BitBay charges a 5% fee for transactions made using credit & debit cards.
The interface of the cryptocurrency exchange is clean.
Security is top-notch, and there hasn’t been any incident of fraud or hacking.
Customer support is also very responsive and replies within 24 hours of the query.
BitBay does click all the right boxes to be on the list of best altcoin exchanges to buy altcoins with USD instantly.
Why Bitbay is the best Altcoin Exchange
- Multiple payment options, including wire transfer and credit & debit cards
- Support healthy no cryptocurrencies
- Highly suited to Poland and European customers
- Security is top-notch
Cons
- 5% transaction fee on buying Bitcoin and altcoins with a credit card & debit card
Conclusion
There are a large number of altcoin exchanges available today for bitcoin trading. But I have shared the details of the best altcoin exchange with their feature, pros, and cons. Hope this will help you in selecting the best among them.
Best Cryptocurrency exchange List
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Note – Always store your altcoins in a cryptocurrency hardware wallet never leave them on an online wallet.