https://trader.degiro.nl/trader/#/products/705366/overview is the EUR/USD exchange rate. You can find this quite easily via the main menu.

I made a convenience method as follows:

def get_euro_dollar():
    return degiro.real_time_price(705366, degiroapi.Interval.Type.One_Day)[0]['data']['lastPrice']

Is it an idea to add something like this to the codebase for multiple currencies?