Bank of Lithuania Exchange Rate API
Official Bank of Lithuania (Lithuania) daily exchange rates. All dozens of currencies published. Free JSON API for tax, audits, and compliant invoicing.
About Bank of Lithuania
The Bank of Lithuania publishes, alongside the ECB reference list it republishes as a euro member, its own daily table of around 87 currencies the ECB does not quote — from the UAE dirham to the Zambian kwacha — expressed as foreign units per euro. Lithuanian accounting and VAT rules cite this list, and the bank posts the next business day's table in advance.
- Official website: www.lb.lt
- Official rate publication: Exchange rates (LT list)
Quick start
One request for the pair you need — EUR to AED at the official Bank of Lithuania rate:
curl "https://allratestoday.com/api/v1/central-bank/lb/latest?source=EUR&target=AED" \
-H "Authorization: Bearer art_live_your_key" Or the bank's full published table:
curl "https://allratestoday.com/api/v1/central-bank/lb/latest" \
-H "Authorization: Bearer art_live_your_key" On paid plans, any historical date or a time series:
curl "https://allratestoday.com/api/v1/central-bank/lb/history?source=EUR&target=AED&from=2025-01-01" \
-H "Authorization: Bearer art_live_your_key" Node.js / TypeScript client
A dedicated zero-dependency npm package wraps these endpoints — bank-of-lithuania-exchange-rate:
npm install bank-of-lithuania-exchange-rate import { getRate } from 'bank-of-lithuania-exchange-rate';
const pair = await getRate('EUR', 'AED', { apiKey: 'art_live_...' });
console.log(pair.rate, pair.rate_date); Zero dependencies, TypeScript types included, and it runs anywhere fetch exists — Node 18+, Bun, Deno, and edge runtimes.
Full reference — installation, all four functions, response shapes, error codes: bank-of-lithuania-exchange-rate documentation.
Why use the official Bank of Lithuania rate?
A market rate is a moving target; the rate Bank of Lithuania publishes is a fixed, citable figure that stays put once printed — which is why invoicing, customs, audit evidence, and statutory accounting in Lithuania lean on it rather than on a live feed. Every response from this API carries the bank's own rate_date, and on days with no publication you get the most recent published table — the one compliance rules tell 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/lb/latest— latest table or single pair (all plans)GET /api/v1/central-bank/lb/{YYYY-MM-DD}— the table for any date (paid plans)GET /api/v1/central-bank/lb/history— time series, up to 5,000 rows (paid plans)GET /api/v1/central-bank/lb/availability— publication calendar: the dates the bank actually published (all 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 published table locally makes a small quota go far.
Frequently asked questions
Does an exchange rate API exist for Bank of Lithuania data?
Yes. This endpoint returns Bank of Lithuania's official daily figures as JSON; the newest table is free on every plan.
How often are the rates updated?
Bank of Lithuania publishes once per business day; the API ingests each new table shortly after publication.
Are these really Bank of Lithuania's official figures?
Yes. Every value comes from Bank of Lithuania's own publication and is served unmodified, carrying the bank's publication date; computed pairs are explicitly flagged derived.
Bank of Lithuania rates, one API key
Latest table on every plan. No credit card to start.
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