Bank of Korea Exchange Rates Today & Official API

Official Bank of Korea rates for 27 Oct 2026: 1 USD = 1322.60 KRW, 1 EUR = 1477.87 KRW. All 43 currencies published, history back to 1964. Free JSON API for tax, audits, and compliant invoicing.

By Madhushan, Founder & Lead Developer

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

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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"

What comes back — a real response built from the table in force (2026-10-27):

{
  "bank": "bok",
  "name": "Bank of Korea",
  "rate_date": "2026-10-27",
  "source": "USD",
  "target": "KRW",
  "rate": 1322.6,
  "rate_type": "reference",
  "derived": false,
  "method": "published",
  "age_days": 0,
  "stale": false,
  "cadence": "daily",
  "disclaimer": "Official rates as published by the named central bank. On weekends/holidays the most recent published rate_date is returned."
}

Or the bank's full published table:

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

The full-table response has the same envelope with every published row (first rows shown):

{
  "bank": "bok",
  "name": "Bank of Korea",
  "rate_date": "2026-10-27",
  "age_days": 0,
  "stale": false,
  "cadence": "daily",
  "rates": [
    {"base":"AED","quote":"KRW","type":"reference","value":360.1},
    {"base":"ARS","quote":"KRW","type":"reference","value":0.86},
    {"base":"AUD","quote":"KRW","type":"reference","value":927.34},
    {"base":"BDT","quote":"KRW","type":"reference","value":10.67},
    … 39 more rows
  ],
  "disclaimer": "Official rates as published by the named central bank. On weekends/holidays the most recent published rate_date is returned."
}

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 (2026-10-27)

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 360.1
ARS KRW reference 0.86
AUD KRW reference 927.34
BDT KRW reference 10.67
BHD KRW reference 3506.36
BND KRW reference 1032.51
BRL KRW reference 246.2
CAD KRW reference 943.74
CHF KRW reference 1598.4
CNY KRW reference 198.43
CZK KRW reference 60.7
DKK KRW reference 197.72
EGP KRW reference 23.5
EUR KRW reference 1477.87
GBP KRW reference 1764.55
HKD KRW reference 168.58
HUF KRW reference 4.02
IDR KRW reference 0.073
ILS KRW reference 430.13
INR KRW reference 13.89
JOD KRW reference 1865.44
JPY KRW reference 8.3983
KWD KRW reference 4294.16
KZT KRW reference 2.93
MNT KRW reference 0.37
MXN KRW reference 71.24
MYR KRW reference 323.57
NOK KRW reference 141.97
NZD KRW reference 751.3
PHP KRW reference 20.69
PKR KRW reference 4.77
PLN KRW reference 335.62
QAR KRW reference 362.85
RUB KRW reference 16.37
SAR KRW reference 352.42
SEK KRW reference 132.84
SGD KRW reference 1032.51
THB KRW reference 39.16
TRY KRW reference 26.57
TWD KRW reference 40.63
USD KRW reference 1322.6
VND KRW reference 0.0512
ZAR KRW reference 79.49

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: 2026-10-27).

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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