In the docs https://stripe.com/docs/api#create_charge there is no reffrence to exchange rates. Do you return a response that shows what the exchange rate was and so how much we will be paid in GBP after charging in USD? (paypal (yuck) do this)
Ah, yes. I was distracted by cake in the office and missed that this is a new endpoint on the API. I thought you were talking about the transfers endpoint.
Do you disclose anywhere the basis for calculating the FX transaction rate? I'd be interested to know how you do this before actually having a clients transaction convert.
Just specify a different currency in your charge and everything else will automatically do the right thing -- it should be a 3-char change. (We'll automatically convert charges to the currency of your bank account.)
How do we do it?