Central Bank of Türkiye (TCMB) API

Base URL

https://www.tcmb.gov.tr/kurlar

Authentication

No key or registration. The bulletin is a public TCMB publication.

Rate limit

No documented limit. One bulletin is published per working day at around 15:30 Istanbul time.

Pricing

Free.

CORS

Not enabled — call it from your server

Official docs

Read the docs

Every request below was executed against the live API on 21 Aug 2026, and the response shown is the real body it returned — not an illustration.

curl 'https://www.tcmb.gov.tr/kurlar/202608/20082026.xml'

const res = await fetch("https://www.tcmb.gov.tr/kurlar/202608/20082026.xml");
if (!res.ok) throw new Error(`Request failed: ${res.status}`);
const data = await res.json();
console.log(data);

import requests

res = requests.get("https://www.tcmb.gov.tr/kurlar/202608/20082026.xml", timeout=20)
res.raise_for_status()
print(res.json())

<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet type="text/xsl" href="isokur.xsl"?>
<Tarih_Date Tarih="20.08.2026" Date="08/20/2026"  Bulten_No="2026/155" >
	<Currency CrossOrder="0" Kod="USD" CurrencyCode="USD">
			<Unit>1</Unit>
			<Isim>ABD DOLARI</Isim>
			<CurrencyName>US DOLLAR</CurrencyName>
			<ForexBuying>47.8642</ForexBuying>
			<ForexSelling>47.9504</ForexSelling>
			<B

Tarih_Date@Tarih / @Dateattribute

Bulletin date in Turkish `DD.MM.YYYY` and US `MM/DD/YYYY` formats respectively.

Tarih_Date@Bulten_Noattribute

Sequential bulletin number within the year.

Currency@CurrencyCodeattribute

ISO 4217 code.

Currency/Unitelement

Units the rate applies to — 1 for most currencies, 100 for JPY and a few others.

Currency/ForexBuying / ForexSellingelement

Rates for transfers and account transactions, in lira per `Unit`.

Currency/BanknoteBuying / BanknoteSellingelement

Rates for physical cash, which are always slightly wider than the forex pair.

Currency/CrossRateUSD / CrossRateOtherelement

Cross rate against the US dollar, populated on one side or the other depending on the currency.

• Convert lira amounts using the official rate for a specific transaction date
• Distinguish transfer rates from cash rates when reconciling travel expenses
• Backfill a Turkish lira history by walking working days back through the archive
• Cross-check a bank's applied rate against the published bulletin

If Central Bank of Türkiye (TCMB) does not fit, these finance & crypto apis cover similar ground. Every one was called before publishing, and each links to its own reference page with a working curl command and the response it returned.