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SLL to CZK exchange rate API

Leone to Czech Koruna · quoted 2026-10-01

0.000879

▼ +11.57% over 5Y

1 SLL = 0.000879 CZK · 1 CZK = 1137.66 SLL · Get this rate via the API

1 SLL buys 0.000879 CZK as of 2026-10-01, so 1 CZK buys 1137.66 SLL. Over the last 5 years, SLL/CZK traded between 0.000879 and 0.001071, averaged 0.000959 and fell 11.57%. 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 5Y

SLL/CZK over 5Y: show the values
PointSLL/CZK
2024-08-240.000994
2024-10-070.001020
2024-11-060.001041
2024-12-060.001043
2025-01-050.001071
2025-02-040.001064
2025-03-060.001015
2025-04-060.001012
2025-05-060.000968
2025-06-070.000992
2025-07-070.000923
2025-08-060.000916
2025-09-050.000917
2025-10-060.000915
2025-11-050.000935
2025-12-050.000904
2026-01-050.000908
2026-02-040.000899
2026-03-060.000920
2026-04-050.000929
2026-05-090.000984
2026-06-120.000914
2026-07-120.000929
2026-08-110.000918
2026-09-110.000912

High

0.001071

Low

0.000879

Average

0.000959

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.