CZK to SLL exchange rate API
Czech Koruna to Leone · quoted 2026-10-01
1136.87
▲ +6.52% over 7D
1 CZK = 1136.87 SLL · 1 SLL = 0.000880 CZK · Get this rate via the API
1 CZK buys 1136.87 SLL as of 2026-10-01, so 1 SLL buys 0.000880 CZK. Over the last 7 days, CZK/SLL traded between 1067.33 and 1144.64, averaged 1090.73 and rose 6.52%. The API holds daily CZK/SLL rates from 2024-08-24 — 2 years of history — so any past day, or a whole series, is one request away.
Converting an invoice? Convert an amount on a specific date.
Get this rate via the API
One GET request returns the CZK/SLL rate as JSON. The free plan includes 1,000 requests a month, with no credit card required.
curl -X GET "https://api.fxfeed.io/v2/latest?api_key=YOUR_API_KEY&base=CZK¤cies=SLL"const response = await fetch("https://api.fxfeed.io/v2/latest?api_key=YOUR_API_KEY&base=CZK¤cies=SLL");
const data = await response.json();import requests
data = requests.get("https://api.fxfeed.io/v2/latest?api_key=YOUR_API_KEY&base=CZK¤cies=SLL").json()Replace YOUR_API_KEY with the key from your dashboard.
CZK/SLL API questions
How do I get the CZK/SLL exchange rate from an API?
Send one GET request to https://api.fxfeed.io/v2/latest?api_key=YOUR_API_KEY&base=CZK¤cies=SLL, replacing YOUR_API_KEY with your own key. The JSON response carries the date and the latest CZK/SLL rate in rates.SLL.
How far back does CZK/SLL historical data go?
Daily CZK/SLL rates are available from 2024-08-24. Request one day with the /historical endpoint and a date, or a range of days with /timeseries.
Is there a free CZK/SLL exchange rate API?
Yes. The free plan includes 1,000 requests a month, with no credit card required; paid plans raise the limit.
Put these rates in your application
One endpoint, JSON responses, 160+ currencies and history back to 1999. Start on the free plan.