Bank of Korea Exchange Rates Today & Official API

Official Bank of Korea rates for 18 Sept 2026: 1 USD = 1380.30 KRW, 1 EUR = 1584.31 KRW. All 43 currencies published, history back to 1964. Free JSON API for tax, audits, and compliant invoicing.

South Korea flagBank 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.

Quick start

You need a free API key to run these. Register in under a minute — no card required.

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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 (2026-09-18)

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

Download history:
Choose currencies: USD
Excel (.xlsx) CSV

One row per currency per publication date. Up to one year per download. Billed as one API call per currency per month of data.

BaseQuoteTypeRate
AED KRW reference 375.82
ARS KRW reference 0.91
AUD KRW reference 981.53
BDT KRW reference 11.24
BHD KRW reference 3661.37
BND KRW reference 1082.04
BRL KRW reference 269.34
CAD KRW reference 986.7
CHF KRW reference 1674.21
CNY KRW reference 205.49
CZK KRW reference 65.17
DKK KRW reference 211.94
EGP KRW reference 26.48
EUR KRW reference 1584.31
GBP KRW reference 1844.08
HKD KRW reference 175.92
HUF KRW reference 4.36
IDR KRW reference 0.07780000000000001
ILS KRW reference 455.58
INR KRW reference 14.39
JOD KRW reference 1946.83
JPY KRW reference 8.8529
KWD KRW reference 4490.97
KZT KRW reference 3.1
MNT KRW reference 0.38
MXN KRW reference 80.38
MYR KRW reference 336.74
NOK KRW reference 146.6
NZD KRW reference 791.05
PHP KRW reference 22.01
PKR KRW reference 4.97
PLN KRW reference 363.56
QAR KRW reference 378.68
RUB KRW reference 16.33
SAR KRW reference 367.44
SEK KRW reference 140.54
SGD KRW reference 1082.04
THB KRW reference 41.49
TRY KRW reference 28.34
TWD KRW reference 43.32
USD KRW reference 1380.3
VND KRW reference 0.053099999999999994
ZAR KRW reference 84.88

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

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: 2026-09-18).

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.

Bank of Korea rates, one API key

Latest table on every plan. History back to 1964 on paid plans. No credit card to start.

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