Bulgarian National Bank Exchange Rate API

Official Bulgarian National Bank (Bulgaria) daily exchange rates as JSON: 29 currencies, history back to 2026. The published EUR rates required for tax, audits, and compliant invoicing.

Bulgarian National Bank official daily exchange rates as JSON: 29 currencies against the EUR, history back to 2026. Latest table on every plan. Get your API key.

Quick start

One request for the pair you need — EUR to USD at the official Bulgarian National Bank rate:

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

Or the bank's full published table:

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

Latest published rates (2026-08-03)

The most recent table as published by Bulgarian National Bank — exactly what the /latest endpoint returns right now. Values are quoted per 1 EUR (ECB convention):

Base	Quote	Type	Rate
EUR	AUD	reference	1.6463
EUR	BRL	reference	5.8454
EUR	CAD	reference	1.6181
EUR	CHF	reference	0.932
EUR	CNY	reference	7.7891
EUR	CZK	reference	24.206
EUR	DKK	reference	7.4749
EUR	GBP	reference	0.85633
EUR	HKD	reference	9.0464
EUR	HUF	reference	363.98
EUR	IDR	reference	20736.99
EUR	ILS	reference	3.5194
EUR	INR	reference	109.9725
EUR	ISK	reference	142
EUR	JPY	reference	180.73
EUR	KRW	reference	1646.1
EUR	MXN	reference	19.9794
EUR	MYR	reference	4.7242
EUR	NOK	reference	10.9965
EUR	NZD	reference	1.9636
EUR	PHP	reference	70.279
EUR	PLN	reference	4.3033
EUR	RON	reference	5.2455
EUR	SEK	reference	10.9845
EUR	SGD	reference	1.4783
EUR	THB	reference	38.452
EUR	TRY	reference	54.8333
EUR	USD	reference	1.1535
EUR	ZAR	reference	18.9979

Node.js / TypeScript client

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

npm install bnb-exchange-rate

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

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

Why use the official Bulgarian National Bank rate?

Live market rates move continuously, but tax filings, customs declarations, audits, and statutory accounting in Bulgaria and beyond typically require the official rate published by Bulgarian National Bank 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 EUR) and explicitly flagged "derived": true — so what the bank printed and what was computed are never confused.

Endpoints

• GET /api/v1/central-bank/bnb/latest — latest table or single pair (all plans)
• GET /api/v1/central-bank/bnb/{YYYY-MM-DD} — the table for any date (paid plans)
• GET /api/v1/central-bank/bnb/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 Bulgarian National Bank exchange rates?

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

How often are the rates updated?

Bulgarian National Bank publishes once per business day; the API ingests each new table shortly after publication (latest: 2026-08-03).

Are these the official rates?

Yes — ingested from Bulgarian National Bank'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 Banco Central do Brasil (PTAX)Brazil — official BRL rates Bank IndonesiaIndonesia — official IDR rates Reserve Bank of IndiaIndia — official INR 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 Central Bank of NigeriaNigeria — official NGN rates Central Bank of KuwaitKuwait — official KWD rates Central Bank of BahrainBahrain — official BHD rates Central Bank of AzerbaijanAzerbaijan — official AZN rates Central Bank of Bosnia and HerzegovinaBosnia and Herzegovina — official BAM rates Central Reserve Bank of PeruPeru — official PEN rates