# Verify DCC eligibility

`POST /fx-rates`

> **Important:** There are restrictions on which merchants can use this method. For more information, go to [Dynamic Currency Conversion](https://docs.payroc.com/knowledge/card-payments/dynamic-currency-conversion).  

Use this method to check if a card is eligible for Dynamic Currency Conversion (DCC) and to retrieve the conversion rate for a transaction amount. DCC provides a customer with the option to use their card's currency instead of the merchant's currency, for example, in Ireland, an American customer can pay in US dollars instead of Euros.  

The request includes the following:  

- **Payment method** - Card information, a secure token, or digital wallet.  
- **Transaction information** - Amount and currency of the transaction in the merchant's currency.  

If the card is eligible for DCC, our gateway returns the transaction amount in the card's currency and a dccOffer object that contains information about the conversion rate. The dccOffer object contains the following fields that you need when you [run a sale](https://docs.payroc.com/api/schema/card-payments/payments/create) or [unreferenced refund](https://docs.payroc.com/api/schema/card-payments/refunds/create-unreferenced-refund) with DCC:  
- fxAmount  
- fxCurrency  
- fxRate  
- markup  
- accepted  
- offerReference