ISK to SLL exchange rate API
Iceland Krona to Leone · quoted 2026-10-01
203.1719
▲ +7.66% over 7D
1 ISK = 203.1719 SLL · 1 SLL = 0.004922 ISK · Get this rate via the API
1 ISK buys 203.1719 SLL as of 2026-10-01, so 1 SLL buys 0.004922 ISK. Over the last 7 days, ISK/SLL traded between 188.7089 and 204.1970, averaged 194.1919 and rose 7.66%. The API holds daily ISK/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.
Get this rate via the API
One GET request returns the ISK/SLL rate as JSON. The free plan includes 1,000 requests a month, with no credit card required.
curl -X GET "https://api.fxfeed.io/v2/latest?api_key=YOUR_API_KEY&base=ISK¤cies=SLL"const response = await fetch("https://api.fxfeed.io/v2/latest?api_key=YOUR_API_KEY&base=ISK¤cies=SLL");
const data = await response.json();import requests
data = requests.get("https://api.fxfeed.io/v2/latest?api_key=YOUR_API_KEY&base=ISK¤cies=SLL").json()Replace YOUR_API_KEY with the key from your dashboard.
ISK/SLL API questions
How do I get the ISK/SLL exchange rate from an API?
Send one GET request to https://api.fxfeed.io/v2/latest?api_key=YOUR_API_KEY&base=ISK¤cies=SLL, replacing YOUR_API_KEY with your own key. The JSON response carries the date and the latest ISK/SLL rate in rates.SLL.
How far back does ISK/SLL historical data go?
Daily ISK/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 ISK/SLL 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.