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ISK to SLL exchange rate API

Iceland Krona to Leone · quoted 2026-10-01

203.1719

▲ +8.48% over 1Y

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 year, ISK/SLL traded between 170.8518 and 203.1719, averaged 184.0525 and rose 8.48%. 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.

ISK/SLL over 1Y

ISK/SLL over 1Y: show the values
PointISK/SLL
2025-10-01187.2883
2025-10-08187.2927
2025-10-15186.2712
2025-10-22185.4105
2025-10-29184.2028
2025-11-05177.2669
2025-11-12178.7167
2025-11-19180.6268
2025-11-26180.5967
2025-12-03179.5619
2025-12-11181.0710
2025-12-18181.7321
2025-12-25182.4263
2026-01-01182.0509
2026-01-08181.2323
2026-01-15182.5898
2026-01-22183.1677
2026-01-29189.1508
2026-02-05187.3909
2026-02-12171.4820
2026-02-19186.1142
2026-02-26189.0408
2026-03-05183.6626
2026-03-12182.7848
2026-03-19182.8330
2026-03-26184.0298
2026-04-02183.4100
2026-04-13171.0947
2026-04-20172.2076
2026-04-27171.5673
2026-05-04170.8518
2026-05-11171.5620
2026-05-19185.6029
2026-05-27185.3879
2026-06-03199.2035
2026-06-12183.2955
2026-06-19197.0143
2026-06-26180.9110
2026-07-03181.5764
2026-07-10182.1558
2026-07-17182.2491
2026-07-24188.1118
2026-07-31184.2794
2026-08-07185.0370
2026-08-14186.3159
2026-08-22191.5384
2026-08-29193.2588
2026-09-05192.5285
2026-09-12190.5846
2026-09-19189.1120
2026-09-26190.7079

High

203.1719

Low

170.8518

Average

184.0525

For developers

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
curl -X GET "https://api.fxfeed.io/v2/latest?api_key=YOUR_API_KEY&base=ISK&currencies=SLL"
JavaScript
const response = await fetch("https://api.fxfeed.io/v2/latest?api_key=YOUR_API_KEY&base=ISK&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=ISK&currencies=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&currencies=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.