XE (brl2eur)
Trigger: !brl2eur
Try it
Kagi would openhttps://www.xe.com/currencyconverter/convert/?Amount=example.org&From=BRL&To=EUR
Run @brl2eur in Kagi for Kagi's own results from www.xe.com only
URL pattern: https://www.xe.com/currencyconverter/convert/?Amount=query&From=BRL&To=EUR
Searches www.xe.com, filed under Tools (URLs).