Let your users buy crypto today.

Monetize users with our turn-key fiat onramp.

Allow your users to buy crypto without leaving your app/website. Earn on every transaction to monetize your audience.

Supported by:


Give your users the best option with the lowest fees.

Quickly integrate all major fiat gateways (sellers) using our free widget, or build your own flow with our robust yet simple API. 

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Fiat currencies
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Payment methods

One (free) integration.

Integrate the Onramper widget within 30 minutes for free, or connect to our API.

One contract.

Integrate all fiat<>crypto gateways, sign a single contract.


Support, chargebacks and KYC/AML compliance are handled for you.

Earn and grow.

Earn on all your users’ transactions through an affiliate/referral fee.

Integrate Onramper now.

Integrate our widget in 15 minutes with three easy steps.


In the code, you see &apiKey=[…]. Simply replace the key that’s filled in with the Test-key you’ve generated to start testing. 

You can customize the widget by changing the size of the widget, colors and more directly in the sandbox on this page. When you’re done, just copy-paste the code into your page.

To go live, fill in our onboarding form and we’ll give you a live-API key. 

Just replace the test API key with the live API key. Congrats, your users can now buy cryptocurrencies!

We sign contracts with parties that want to set a referral fee to earn on each transaction. You’ll receive this contract after completing our onboarding form.

See the Pen Onramper Widget by Onramper (@thijsmaaslaw) on CodePen.

See the Pen Onramper Widget by Thijs Maas (@thijsmaaslaw) on CodePen.

Best buying experience for your users

Best fiat onramp for your business

Got questions about our fiat onramp?

These are the most frequently asked questions:

Onramper is a fiat onramp solution. We provide a turnkey widget and an open API that you can integrate in your website or app to allow users to buy cryptocurrencies. You can set a fee to earn on every transaction from your users.

All major fiat-to-crypto gateways (=sellers) are included in Onramper, so your users can always get the best price with the lowest fees. We ensure you don’t have to contract with and integrate these fiat gateways yourself.

Because Onramper aggregates all fiat gateways in one, it provides the best possible coverage of supported countries, fiat currencies, cryptocurrencies and payment methods. 

Onramper does not convert fiat currencies to cryptocurrencies itself. We develop a widget & API that can be integrated by businesses that want to allow their users to buy cryptocurrencies. The conversion of currencies is done by third party fiat-to-crypto gateways.

Our fiat onramp supports all currencies and payment methods that are supported by all the fiat gateways that are aggregated within Onramper. 

Currently, Onramper supports over 75 cryptocurrencies, including: 0x (ZRX), Algorand (ALGO), Augur (REP), Band (BAND), Basic Attention Token (BAT), Binance Coin (BNB), Binance USD (BUSD), Bitcoin (BTC), Bitcoin Cash (BCH), BORA (BORA), Cardano (ADA), Celo (CELO), Chainlink (LINK), Chiliz (CHZ), Civic (CVC), Compound (COMP), Cosmos (ATOM), Dai (DAI), Dash (DASH), Decentraland (MANA), DigiByte (DGB), Dogecoin (DOGE), Elrond eGold (EGLD), EOSDT (EOSDT), EOS (EOS), Ethereum Classic (ETC), Ethereum (ETH), Ethereum (Kovan) (KETH), Ethereum (Rinkeby) (RINKETH), FunFair (FUN), Hedera Hashgraph (HBAR), Hive (HIVE), IOTA (MIOTA), Kava (KAVA), LBRY Credits (LBC), Litecoin (LTC), Luna (LUNA), Maker (MKR), Nano (NANO), NEO (NEO), OKB (OKB), OMG Network (OMG), Ontology Gas (ONG), Ontology (ONT), Paxos Standard (PAX), Polkadot (DOT), Qtum (QTUM), Ravencoin (RVN), Solana (SOL), Stellar (XLM), StormX (STMX), Terra KRW (KRT), Terra SDR (SDT), Terra USD (UST), Tether (USDT), Tezos (XTZ), Travala (AVA), TRON (TRX), TrueUSD (TUSD), USD Coin (USDC), VeChain (VET), Waves (WAVES), WAX (WAXP), XRP (XRP), Zcash (ZEC), Zilliqa (ZIL)

You can find the most up-to-date list of Onramper’s supported cryptocurrencies here

Onramper supports all fiat currencies that are supported by the fiat gateways integrated within Onramper. Currently, that includes:

  • AUD – Australian Dollar
  • BGN – Bulgarian Lev
  • CAD – Canadian Dollar
  • CHF – Swiss Franc
  • CNY – Chinese Yuan
  • COP – Colombia Peso
  • CZK – Czech Koruna
  • DKK – Danish Krone
  • DOP – Dominican Peso
  • EGP – Egyptian Pound
  • EUR – Euro
  • GBP – Pound Sterling
  • HKD – Hong Kong Dollar
  • HRK – Croatian Kuna
  • IDR – Indonesian Rupiah
  • ILS – Israeli New Shekel
  • JPY – Japanese Yen
  • JOD – Jordanian Dollar
  • KES – Kenyan Shilling
  • KRW – South Korean Won
  • KWD – Kuwaiti Dinar
  • LKR – Sri Lankan Rupee
  • MAD – Moroccan Dirham
  • MXN – Mexican Peso
  • MYR – Malaysian Ringgit
  • NGN – Nigerian Naira
  • NOK – Norwegian Krone
  • NZD – New Zealand Dollar
  • OMR – Omani Rial
  • PEN – Peruvian Sol
  • PKR – Pakistanee Rupee
  • PLN – Polish Złoty
  • RON – Romanian Leu
  • RUB – Russian Ruble
  • SEK – Swedish Krona
  • SGD – Singapore Dollar
  • THB – Thai Baht
  • TRY – Turkish Lira
  • TWD – Taiwan Dollar
  • USD – US Dollar
  • VND – Vietnamese Dong
  • ZAR – South African Rand

Over 100 more currencies are supported through client-bank-side forex conversions. 

You can find the most up-to-date list of Onramper’s supported fiat currencies here.

Onramper supports more payment methods than any other fiat onramp to reduce friction for users. We’ll keep adding new fiat gateways, so this list of payment methods will only get bigger!

Currently, Onramper supports:

  • Worldwide credit & debit cards (VISA, Mastercard, Discover),
  • EU wire transfers (SEPA, Interac E-transfer, Faster Payments),
  • FPS (HK),
  • Alipay (HK),
  • PayNow (Singapore),
  • Duitnow (Malaysia), 
  • InstaPay (Phillippines),
  • Cebuana (Phillippines),
  • Prompt Pay (Thailand),
  • UPI (India),
  • Viettal Pay (Vietnam),
  • Gojek Pay (Indonesia), and
  • Mandiri (Indonesia).

You can find the most up-to-date list of Onramper’s supported payment methods here

No. We do not sell cryptocurrencies, nor do we exchange or convert between fiat currencies and cryptocurrencies. We provide our clients with software to provide a fiat onramp to their users. The software can be used by end-users to buy cryptocurrency from third-party fiat-to-crypto gateways.

You will find our policies by clicking on one of the following links:

When buying cryptocurrency from a fiat gateway that is integrated within Onramper’s fiat onramp, users will have to agree with the fiat gateway’s policies as well.

Different fiat-crypto gateways allow (and disallow) users from different countries. While we aim to ensure users can buy cryptocurrency globally, we only work with fiat gateways that have implemented due diligence procedures, anti-fraud measures and KYC/AML policies. As such, users from a limited amount of ‘high-risk’ countries, such as Iran or North-Korea, might not be able to use Onramper.


As our customer, you never have to deal with any attempted fraud by end-users. All chargebacks and other fraud attempts will be dealt with by the fiat gateways aggregated in Onramper.


KYC/AML procedures are implemented by the fiat gateways that are aggregated within our fiat onramp. As such, in order to buy cryptocurrencies, users will have to prove their identity to the fiat gateway used for a transaction. The fiat gateway is responsible for implementing appropriate procedures and compliance requirements to allow users to buy cryptocurrencies. Through Onramper, users can easily fill in / upload all info and documents required by the fiat gateway. We never store this data ourselves.

Customer Service

We ensure your customer service won’t be bothered with questions for fiat gateways. In case users need help, they can easily get answers to their questions. If Onramper’s FAQ doesn’t suffice, we ensure users they can easily reach the support department of the fiat gateway used for a transaction. Some fiat gateways also provide a dashboard so the user can track their own transaction. Upon completing a transaction, an email is sent to the user with more info on how to reach support as well.

The first time a user transacts, he/she has to complete a fiat gateway’s Know-Your-Customer process. This can be done without leaving your page! If the users does another transaction using the same gateway later, there’s no need to go through KYC again.

By integrating now, you join our Launch Partner Program which provides additional benefits. Most importantly, we are waiving all integration costs for our launch partners! As of January, only a limited amount of spots are still available.