XE (brl2usd)
Trigger: !brl2usd
Try it
Kagi would openhttps://www.xe.com/currencyconverter/convert/?Amount=example.org&From=BRL&To=USD
Run @brl2usd 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=USD
Searches www.xe.com, filed under Tools (URLs).