Banco Central do Brasil (PTAX) Exchange Rate API

Official Banco Central do Brasil (PTAX) (Brazil) daily exchange rates as JSON: 10 currencies, history back to 2016. The published BRL rates required for tax, audits, and compliant invoicing.

Banco Central do Brasil (PTAX) official daily exchange rates as JSON: 10 currencies against the BRL, history back to 2016. Latest table on every plan. Get your API key.

Quick start

One request for the pair you need — USD to BRL at the official Banco Central do Brasil (PTAX) rate:

curl "https://allratestoday.com/api/v1/central-bank/bcb/latest?source=USD&target=BRL" \
  -H "Authorization: Bearer art_live_your_key"

Or the bank's full published table:

curl "https://allratestoday.com/api/v1/central-bank/bcb/latest" \
  -H "Authorization: Bearer art_live_your_key"

On paid plans, any historical date or a daily time series:

curl "https://allratestoday.com/api/v1/central-bank/bcb/history?source=USD&target=BRL&from=2025-01-01" \
  -H "Authorization: Bearer art_live_your_key"

Latest published rates (2026-07-31)

The most recent table as published by Banco Central do Brasil (PTAX) — exactly what the /latest endpoint returns right now. Values are BRL per 1 unit of each currency:

Node.js / TypeScript client

A dedicated zero-dependency npm package wraps these endpoints — bcb-exchange-rate:

npm install bcb-exchange-rate

import { getRate } from 'bcb-exchange-rate';

const pair = await getRate('USD', 'BRL', { apiKey: 'art_live_...' });
console.log(pair.rate, pair.rate_date);

Why use the official Banco Central do Brasil (PTAX) rate?

Live market rates move continuously, but tax filings, customs declarations, audits, and statutory accounting in Brazil and beyond typically require the official rate published by Banco Central do Brasil (PTAX) for a given date — a fixed, citable number that never changes after publication. This API serves those published tables with the bank's own rate_date on every response; weekends and holidays return the most recent published date, which is the rate compliance rules require you to apply.

Pairs the bank doesn't print directly are resolved from its table (inverse or cross via BRL) and explicitly flagged "derived": true — so what the bank printed and what was computed are never confused.

Endpoints

• GET /api/v1/central-bank/bcb/latest — latest table or single pair (all plans)
• GET /api/v1/central-bank/bcb/{YYYY-MM-DD} — the table for any date (paid plans)
• GET /api/v1/central-bank/bcb/history — daily time series, up to 5,000 rows (paid plans)

Full parameter reference in the API documentation. Every request counts toward your plan's monthly quota — rates change once per business day, so caching a day's table locally makes a small quota go far.

Frequently asked questions

Is there an API for Banco Central do Brasil (PTAX) exchange rates?

Yes — this one. Official daily BRL rates as clean JSON, latest table on every plan including free.

How often are the rates updated?

Banco Central do Brasil (PTAX) publishes once per business day; the API ingests each new table shortly after publication (latest: 2026-07-31).

Are these the official rates?

Yes — ingested from Banco Central do Brasil (PTAX)'s own published data, served unmodified with the bank's publication date. Anything computed rather than published is flagged derived.

Other central banks

All covered central banksCoverage, endpoints, and plans US Federal Reserve (H.10)United States — official USD rates Bank of EnglandUnited Kingdom — official GBP rates People's Bank of China (CFETS)China — official CNY rates Reserve Bank of AustraliaAustralia — official AUD rates Bank of RussiaRussia — official RUB rates Central Bank of TürkiyeTürkiye — official TRY rates Bank IndonesiaIndonesia — official IDR rates Bank of CanadaCanada — official CAD rates Bank Negara MalaysiaMalaysia — official MYR rates Central Bank of Sri LankaSri Lanka — official LKR rates Czech National BankCzech Republic — official CZK rates European Central BankEurozone — official EUR rates Narodowy Bank PolskiPoland — official PLN rates Norges BankNorway — official NOK rates Sveriges RiksbankSweden — official SEK rates