What is fiat-to-crypto on-ramp?
A fiat-to-crypto on-ramp (also called a fiat-to-crypto payment gateway) is a payment processor that converts traditional currencies like USD or EUR into cryptocurrencies such as USDT, BTC, or ETH.
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On-ramp
Let your users buy crypto directly with cards, bank transfers, or alternative payment methods — in just one click
Calypso Pay’s fiat-to-crypto gateway connects traditional payment systems with digital assets
It allows users to buy crypto with fiat (USD, EUR, BRL, and more) — without registering on exchanges, managing wallets manually, or dealing with trading platforms
For businesses, the on-ramp solution is a ready-to-use fiat-to-crypto payment processor — helping you add crypto purchases or deposits into your product with minimal development effort and maximum conversion
150+
Countries
100+
Fiat currencies
The easiest way to move from fiat to crypto
How on-ramp works?
Problem
Solution
Example
Merchant
Problem: Merchants operate only in crypto, but many customers are unfamiliar with cryptocurrencies or do not own any.
Solution with on-ramp: Merchants can offer a simple way for customers to buy crypto directly on their website.
An iGaming platform accepts only crypto. A new player wants to top up their account but doesn’t own any crypto. With on-ramp, they purchase BTC using their credit card, and the tokens are instantly credited to their gaming balance.
Customer
Problem: Customers want to use a platform’s services but don’t have cryptocurrency.
Solution with on-ramp: They can easily buy crypto using fiat directly on the merchant’s website.
A user wants to deposit funds on a platform and chooses to pay in IDR (Indonesian Rupiah). They complete the transaction via Bank Transfer, and USDC is instantly credited to their account after payment verification.
Payment methods
Over 100 fiat currencies and 30 different payment methods
Fiat
Method
AZN
M10, MPAY, P2P, Visa/Mastercard
BRL
PIX
CLP
Bank Transfer, Chek, Hites, Mach, Webpay
COP
Bank Transfer
EUR
Cards
GHS
Mobile Money
HKD
Bank Transfer
IDR
Bank Transfer, Online Banking, QRIS, Virtual Accoun
KES
Cards, Mobile Money
KRW
Bank Transfer
To get full proposal please contact sales.
Integration
Integrate the on-ramp in minutes — through our embedded widget or via a custom API for full control over the user experience
Minimum code
On-ramp widget
On-ramp iframe payment widget
- Easily embedded on a website
- Ready-to-use interface
- Customers pay on merchant’s platform
Try widget
Full control
Custom API
Seamless on-ramp integration
- Full customization of the user experience
- Merchant's own interface and payment flow
Expolre On-ramp API
On-ramp FAQ
How on-ramp works?
Technically on-ramp is fiat order created via API by selecting a supported region and currency, retrieving available payment methods and rates, and submitting an order request. Upon success, a payment URL is generated for user transactions. The system processes payments asynchronously, triggering webhooks for events like successful payments, failures, expirations, and adjustments.
Where to use on-ramp?
The on-ramp is ideal for businesses operating with cryptocurrency that want to provide customers with an easy way to deposit funds using traditional payment methods.
What payment methods are supported with on-ramp?
Calypso Pay on-ramp supports over 100 fiat currencies and a wide range of different payment methods. Common options include bank transfers for currencies like CLP, COP, and MXN, credit and debit cards (Visa/Mastercard) for EUR and NGN, and e-wallets like PIX, GCash, and Grab Pay. Mobile payments, online banking, and local payment solutions are also available.
What is on-ramp widget?
On-ramp widget is an embedded payment interface that appears directly on the merchant’s website or product. Users do not need to leave the platform – they interact with the widget in a seamless format. The widget is launched via a URL with key parameters like the merchant’s account, currency, and transaction details. The payment flow is straightforward: users select a currency, enter an amount, choose a payment method, confirm, and complete the transaction.
Does Calypso Pay charges a fee for on-ramp?
Calypso Pay charges a percentage-based fee on transactions, which depends on the merchant's volume. The pricing is flexible, and custom terms can be negotiated based on business needs. You can find more information on our pricing page or contact sales directly to get a special offer.
