Banco Central do Brasil / PTAX exchange rates for a currency and period

Official PTAX exchange rates of the Brazilian real, from the BCB, for one currency between two dates (dates as MM-DD-YYYY, month first). Each day has up to four bulletins (Abertura, two Intermediario, Fechamento); the closing PTAX (Fechamento) is the official reference rate: pass closing_only to keep only it. Each row: cotacaoCompra and cotacaoVenda (BRL per unit of the currency, buy and sell), paridadeCompra and paridadeVenda (units per USD), dataHoraCotacao, tipoBoletim. Currencies: USD, EUR, GBP, JPY, CHF, CAD, AUD, DKK, NOK, SEK. An unknown currency returns an empty list. Source: Banco Central do Brasil, dados abertos (dadosabertos.bcb.gov.br); credit the Banco Central do Brasil when you show it. Free on looot: $0 per call.