CZK to SLL exchange rate API

Czech Koruna to Leone · quoted 2026-10-01

1136.87

▲ +2.36% over YTD

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 year to date, CZK/SLL traded between 987.0803 and 1184.13, averaged 1085.55 and rose 2.36%. 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 YTD

7D 30D 6M YTD 1Y 5Y

CZK/SLL over YTD: show the values

Point	CZK/SLL
2025-12-31	1110.67
2026-01-07	1099.16
2026-01-14	1103.29
2026-01-21	1109.41
2026-01-28	1124.75
2026-02-04	1111.82
2026-02-11	1122.16
2026-02-18	1120.48
2026-02-25	1114.13
2026-03-04	1095.79
2026-03-11	1087.44
2026-03-18	1073.52
2026-03-25	1082.25
2026-04-01	1083.80
2026-04-08	1102.65
2026-04-19	1014.46
2026-04-26	1008.74
2026-05-03	1009.77
2026-05-10	1015.31
2026-05-18	1004.29
2026-05-26	1096.39
2026-06-02	1184.13
2026-06-11	1088.51
2026-06-18	1082.07
2026-06-25	1068.58
2026-07-02	987.08
2026-07-09	1078.96
2026-07-16	1083.00
2026-07-23	1080.68
2026-07-30	1086.49
2026-08-06	1092.21
2026-08-13	1123.96
2026-08-21	1110.91
2026-08-28	1104.61
2026-09-04	1180.79
2026-09-11	1096.02
2026-09-18	987.35
2026-09-25	1074.02

High

1184.13

Low

987.0803

Average

1085.55

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