Level up your on-ramps

All fiat on-ramps in a single integration.

Allow your users to buy crypto without leaving your app/website. Earn on every transaction and monetize your audience with our crypto on-ramp.

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Fiat currencies
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Payment methods

We've done the work so you don't have to

Integrate all major fiat gateways (sellers) using our free widget in 30 minutes, or build your own flow with our robust yet simple API. 

Learn more about our gateways

Soon to be added:

With Onramper, the best offer is always available

For any transaction, we check which gateway has the lowest fees, and allow the user to choose their preferred option.

Learn more about our pricing.


image of onramper fiat gateway selection of fiat onramp

Want support for your own token?

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 just a single contract.


Chargebacks, support 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 on-ramp widget in 15 minutes with three easy steps.


Copy-paste the code in the Codepen on your page / app to get started.

In the url, you see &apiKey=[…]. 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 by changing the URL used for the iframe or editing the CSS. 

To go live, fill in our onboarding form and we’ll give you a production-ready 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 commission to earn on all on-ramp transactions. 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 Onramper (@thijsmaaslaw) on CodePen.

Best buying experience for your users

Best fiat on-ramp for your business

Got questions about our fiat onramp?

These are the most frequently asked questions:

Onramper is a fiat on-ramp 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.

All major fiat-to-crypto gateways (=sellers) are included in Onramper, so your users always gets the lowest fees.

By aggregating all fiat gateways in Onramper, we support the most countries, fiat currencies, cryptocurrencies and payment methods. 

We also ensure you don’t have to contract with and integrate these fiat gateways yourself. In addition, you can set a fee to earn on every transaction from your users.

Onramper does not convert fiat currencies to cryptocurrencies itself. We develop a widget & API on-ramp 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 on-ramp supports all currencies and payment methods that are supported by all the fiat gateways that are aggregated within Onramper. This includes over 70 fiat currencies and 200 cryptocurrencies. You can find the most up-to-date list of Onramper’s supported fiat currencies and cryptocurrencies 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 on-ramp 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.

We support countries globally, with over 170 geographies covered through our on-ramp.

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 fiat on-ramp. 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. 

Yes, you can add a commission on top of every transaction. To do so, please fill in our onboarding form, indicating you want to set a fee. When doing so, you’ll be provided with the ability to upload documentation on your company for due diligence purposes. Once completed, we can contract and you’ll earn on every transaction. You’ll also get access to a dashboard through which you can see all transactions done by your users.

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