CZK to SLL exchange rate API

Czech Koruna to Leone · quoted 2026-10-01

1136.87

▲ +3.39% over 30D

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 30 days, CZK/SLL traded between 987.3467 and 1180.79, averaged 1097.45 and rose 3.39%. 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.

CZK/SLL over 30D

7D 30D 6M YTD 1Y 5Y

CZK/SLL over 30D: show the values

Point	CZK/SLL
2026-09-01	1099.56
2026-09-02	1096.84
2026-09-03	1099.34
2026-09-04	1180.79
2026-09-05	1119.87
2026-09-06	1099.90
2026-09-07	1100.86
2026-09-08	1100.61
2026-09-09	1101.91
2026-09-10	1097.85
2026-09-11	1096.02
2026-09-12	1097.50
2026-09-13	1097.75
2026-09-14	1090.72
2026-09-15	1089.24
2026-09-16	1169.03
2026-09-17	1083.49
2026-09-18	987.35
2026-09-19	1082.02
2026-09-20	1082.14
2026-09-21	1082.15
2026-09-22	1160.08
2026-09-23	1073.34
2026-09-24	1067.33
2026-09-25	1074.02
2026-09-26	1072.15
2026-09-27	1070.73
2026-09-28	1069.38
2026-09-30	1144.64

High

1180.79

Low

987.3467

Average

1097.45

For developers

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.

Get a free API key Read the API docs

cURL

curl -X GET "https://api.fxfeed.io/v2/latest?api_key=YOUR_API_KEY&base=CZK&currencies=SLL"

JavaScript

const response = await fetch("https://api.fxfeed.io/v2/latest?api_key=YOUR_API_KEY&base=CZK&currencies=SLL");
const data = await response.json();

Python

import requests

data = requests.get("https://api.fxfeed.io/v2/latest?api_key=YOUR_API_KEY&base=CZK&currencies=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&currencies=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.

SLL/CZK · inverse 0.000880 CZK/USD 0.04613 CZK/EUR 0.04087 CZK/GBP 0.03487 CZK/JPY 7.2895 CZK/CHF 0.03855 CZK/AUD 0.06635

Put these rates in your application

One endpoint, JSON responses, 160+ currencies and history back to 1999. Start on the free plan.

Get a free API key Read the docs