QB Payment is to accept payments from your customers. You can signup for a free Melio account to pay your international vendors in USD and integrate it with QBO. The flat fee is $20 per transaction.
Warm greetings, Kevin. I hope you're doing well. I'd like to provide you with some information about QuickBooks Payments.
QuickBooks Payments enables you to include links in your invoices, making it easy for your customers to pay online. As stated by @4Gal, this feature allows you to accept customer payments. They can pay with PayPal, Venmo, credit card, or ACH bank transfer.
Meanwhile, you may want to consider a third-party application to pay an international vendor. Feel free to check out our QuickBooks Apps store for options.