Bank of Korea Exchange Rate API

Official Bank of Korea rates for 10 Sept 2026: 1 USD = 1337.90 KRW, 1 EUR = 1556.98 KRW. All 43 currencies published, history back to 1964. Free JSON API for tax, audits, and compliant invoicing.

Bank of Korea publishes official daily exchange rates — 43 currencies against the KRW — and this API serves them as JSON, with history back to 1964. The latest table is on every plan. Get your API key.

About Bank of Korea

The Bank of Korea publishes the won's daily basic exchange rates (매매기준율, the market average rate set by Seoul Money Brokerage each business morning at 08:10 KST) for around 40 active currencies through its ECOS statistics system, with history reaching back to 1964.

• Official website: www.bok.or.kr/eng/main/main.do
• Official rate publication: ECOS — Economic Statistics System (3.1.1.1)

Quick start

One request for the pair you need — USD to KRW at the official Bank of Korea rate:

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

Or the bank's full published table:

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

Latest published rates (2026-09-10)

The most recent table as published by Bank of Korea — exactly what the /latest endpoint returns right now. Values are KRW per 1 unit of each currency:

Download this table: Excel (.xlsx) CSV (paid plan required)

Base	Quote	Type	Rate
AED	KRW	reference	364.25
ARS	KRW	reference	0.88
AUD	KRW	reference	965.7
BDT	KRW	reference	10.88
BHD	KRW	reference	3548.52
BND	KRW	reference	1058.55
BRL	KRW	reference	262.11
CAD	KRW	reference	969.39
CHF	KRW	reference	1652.65
CNY	KRW	reference	199.65
CZK	KRW	reference	64.19
DKK	KRW	reference	208.29
EGP	KRW	reference	26.11
EUR	KRW	reference	1556.98
GBP	KRW	reference	1813.06
HKD	KRW	reference	170.61
HUF	KRW	reference	4.28
IDR	KRW	reference	0.0764
ILS	KRW	reference	442.5
INR	KRW	reference	14.07
JOD	KRW	reference	1887.02
JPY	KRW	reference	8.7242
KWD	KRW	reference	4362.95
KZT	KRW	reference	2.94
MNT	KRW	reference	0.37
MXN	KRW	reference	79.2
MYR	KRW	reference	328.72
NOK	KRW	reference	145.5
NZD	KRW	reference	781.67
PHP	KRW	reference	21.4
PKR	KRW	reference	4.82
PLN	KRW	reference	360.81
QAR	KRW	reference	367.03
RUB	KRW	reference	15.74
SAR	KRW	reference	356.31
SEK	KRW	reference	139.53
SGD	KRW	reference	1058.55
THB	KRW	reference	40.66
TRY	KRW	reference	27.59
TWD	KRW	reference	42.5
USD	KRW	reference	1337.9
VND	KRW	reference	0.0516
ZAR	KRW	reference	83.38

Node.js / TypeScript client

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

npm install bok-exchange-rate

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

const pair = await getRate('USD', 'KRW', { 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: bok-exchange-rate documentation.

Why use the official Bank of Korea rate?

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

Endpoints

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

Can I get Bank of Korea exchange rates via an API?

Yes — this API serves the bank's official daily KRW rates as JSON, and the latest table is on every plan, free included.

When do new rates appear here?

Once per business day, per Bank of Korea's own schedule; ingestion follows within the hour (latest table: 2026-09-10).

Are these the official rates?

Yes — ingested from Bank of Korea'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 Bulgarian National BankBulgaria — official EUR rates Central Reserve Bank of PeruPeru — official PEN rates Bank of JapanJapan — official JPY rates Hong Kong Monetary AuthorityHong Kong — official HKD rates Bank of IsraelIsrael — official ILS rates Central Bank of ArgentinaArgentina — official ARS rates South African Reserve BankSouth Africa — official ZAR rates Swiss National BankSwitzerland — official CHF rates Reserve Bank of New ZealandNew Zealand — official NZD rates National Bank of RomaniaRomania — official RON rates National Bank of UkraineUkraine — official UAH rates Banco de MéxicoMexico — official MXN rates Bangko Sentral ng PilipinasPhilippines — official PHP rates Banco Central de la República DominicanaDominican Republic — official DOP rates Banco Central del ParaguayParaguay — official PYG rates National Bank of CambodiaCambodia — official KHR rates Bank of GhanaGhana — official GHS rates Central Bank of EgyptEgypt — official EGP rates Bank of AlbaniaAlbania — official ALL rates Banco de GuatemalaGuatemala — official GTQ rates Bank of MongoliaMongolia — official MNT rates Monetary Authority of SingaporeSingapore — official SGD rates Banca d'ItaliaItaly — official EUR rates Danmarks NationalbankDenmark — official DKK rates Superintendencia Financiera de Colombia (TRM)Colombia — official COP rates National Bank of KazakhstanKazakhstan — official KZT rates National Bank of GeorgiaGeorgia — official GEL rates Central Bank of UzbekistanUzbekistan — official UZS rates Magyar Nemzeti BankHungary — official HUF rates Central Bank of IcelandIceland — official ISK rates Central Bank of the UAEUnited Arab Emirates — official AED rates State Bank of PakistanPakistan — official PKR rates Nepal Rastra BankNepal — official NPR rates Central Bank of JordanJordan — official JOD rates Bangladesh BankBangladesh — official BDT rates Central Bank of OmanOman — official OMR rates Palestine Monetary AuthorityPalestine — official ILS rates Central Bank of MyanmarMyanmar — official MMK rates Central Bank of the Republic of China (Taiwan)Taiwan — official TWD rates Bank of ThailandThailand — official THB rates Monetary Authority of MacaoMacao — official MOP rates State Bank of VietnamVietnam — official VND rates Bank of the Lao PDRLaos — official LAK rates Central Bank of VenezuelaVenezuela — official VES rates Central Bank of ChileChile — official CLP rates Central Bank of UruguayUruguay — official UYU rates Banco Central de BoliviaBolivia — official BOB rates Central Bank of SurinameSuriname — official SRD rates Bank of GuyanaGuyana — official GYD rates Saudi Central Bank (SAMA)Saudi Arabia — official SAR rates Bank Al-MaghribMorocco — official MAD rates National Bank of SerbiaSerbia — official RSD rates National Bank of the Republic of BelarusBelarus — official BYN rates Qatar Central BankQatar — official QAR rates Central Bank of IraqIraq — official IQD rates Bank of AlgeriaAlgeria — official DZD rates Banco Central de Costa RicaCosta Rica — official CRC rates Central Bank of West African States (BCEAO)West Africa (WAEMU) — official XOF rates National Bank of EthiopiaEthiopia — official ETB rates Central Bank of KenyaKenya — official KES rates National Bank of MoldovaMoldova — official MDL rates National Bank of North MacedoniaNorth Macedonia — official MKD rates Central Bank of ArmeniaArmenia — official AMD rates Bank of Central African States (BEAC)Central Africa (CEMAC) — official XAF rates Central Bank of TunisiaTunisia — official TND rates National Bank of RwandaRwanda — official RWF rates National Bank of AngolaAngola — official AOA rates Bank of TanzaniaTanzania — official TZS rates Bank of UgandaUganda — official UGX rates Bank of JamaicaJamaica — official JMD rates Banco Central de NicaraguaNicaragua — official NIO rates Banco Central de HondurasHonduras — official HNL rates Central Bank of Trinidad and TobagoTrinidad and Tobago — official TTD rates Bank of MauritiusMauritius — official MUR rates Banco de MoçambiqueMozambique — official MZN rates Bank of BotswanaBotswana — official BWP rates Bank of ZambiaZambia — official ZMW rates Reserve Bank of MalawiMalawi — official MWK rates National Bank of the Kyrgyz RepublicKyrgyzstan — official KGS rates Bank of LithuaniaLithuania — official EUR rates Banque Centrale du CongoDR Congo — official CDF rates Central Bank of BarbadosBarbados — official BBD rates Central Bank of LibyaLibya — official LYD rates Central Bank of The GambiaGambia — official GMD rates Banque de la République d'HaïtiHaiti — official HTG rates Royal Monetary Authority of BhutanBhutan — official BTN rates National Bank of TajikistanTajikistan — official TJS rates Central Bank of BelizeBelize — official BZD rates Reserve Bank of FijiFiji — official FJD rates Maldives Monetary AuthorityMaldives — official MVR rates Banque Centrale de MauritanieMauritania — official MRU rates Reserve Bank of ZimbabweZimbabwe — official ZWG rates Bank of NamibiaNamibia — official NAD rates Tax authority rates APIHMRC and US Treasury official rates Exchange Rate APIReal-time and official rates for every source, one REST API