CZK to SLL exchange rate API

Czech Koruna to Leone · quoted 2026-10-01

1136.87

▲ +5.64% over 6M

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 6 months, CZK/SLL traded between 1006.76 and 1141.46, averaged 1080.80 and rose 5.64%. 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 6M

7D 30D 6M YTD 1Y 5Y

CZK/SLL over 6M: show the values

Point	CZK/SLL
2026-04-04	1076.17
2026-04-15	1014.04
2026-04-22	1010.54
2026-04-29	1006.76
2026-05-06	1013.32
2026-05-14	1100.76
2026-05-21	1091.04
2026-05-29	1096.93
2026-06-05	1100.65
2026-06-14	1095.97
2026-06-21	1082.72
2026-06-28	1071.16
2026-07-05	1080.19
2026-07-12	1076.03
2026-07-19	1079.91
2026-07-26	1141.46
2026-08-02	1091.37
2026-08-09	1089.36
2026-08-16	1094.68
2026-08-24	1107.11
2026-08-31	1100.61
2026-09-07	1100.86
2026-09-14	1090.72
2026-09-21	1082.15
2026-09-28	1069.38

High

1141.46

Low

1006.76

Average

1080.80

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