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SLL to CZK exchange rate API

Leone to Czech Koruna · quoted 2026-10-01

0.000881

▼ +5.17% over 6M

1 SLL = 0.000881 CZK · 1 CZK = 1135.07 SLL · Get this rate via the API

1 SLL buys 0.000881 CZK as of 2026-10-01, so 1 CZK buys 1135.07 SLL. Over the last 6 months, SLL/CZK traded between 0.000876 and 0.000993, averaged 0.000926 and fell 5.17%. The API holds daily SLL/CZK 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.

SLL/CZK over 6M

SLL/CZK over 6M: show the values
PointSLL/CZK
2026-04-040.000929
2026-04-150.000986
2026-04-220.000989
2026-04-290.000993
2026-05-060.000986
2026-05-140.000908
2026-05-210.000916
2026-05-290.000911
2026-06-050.000908
2026-06-140.000912
2026-06-210.000923
2026-06-280.000933
2026-07-050.000925
2026-07-120.000929
2026-07-190.000926
2026-07-260.000876
2026-08-020.000916
2026-08-090.000917
2026-08-160.000913
2026-08-240.000903
2026-08-310.000908
2026-09-070.000908
2026-09-140.000916
2026-09-210.000924
2026-09-280.000935

High

0.000993

Low

0.000876

Average

0.000926

For developers

Get this rate via the API

One GET request returns the SLL/CZK rate as JSON. The free plan includes 1,000 requests a month, with no credit card required.

cURL
curl -X GET "https://api.fxfeed.io/v2/latest?api_key=YOUR_API_KEY&base=SLL&currencies=CZK"
JavaScript
const response = await fetch("https://api.fxfeed.io/v2/latest?api_key=YOUR_API_KEY&base=SLL&currencies=CZK");
const data = await response.json();
Python
import requests

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

Replace YOUR_API_KEY with the key from your dashboard.

SLL/CZK API questions

How do I get the SLL/CZK exchange rate from an API?

Send one GET request to https://api.fxfeed.io/v2/latest?api_key=YOUR_API_KEY&base=SLL&currencies=CZK, replacing YOUR_API_KEY with your own key. The JSON response carries the date and the latest SLL/CZK rate in rates.CZK.

How far back does SLL/CZK historical data go?

Daily SLL/CZK 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 SLL/CZK 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.