New API endpoint for BILL exchange rates for multiple vendors

We have introduced a new API endpoint for getting BILL exchange rates for multiple vendors.

You can now get the current BILL exchange rate and exchange rate batch ID for multiple international vendors with one API request. The exchange rate batch ID is required for creating a bulk payment with POST /v3/payments/bulk.

The BILL exchange rate changes periodically. Use this endpoint to get the current exchange rate based on the payment amount and vendor bill currency.