GNF to SLL exchange rate API

Guinea Franc to Leone · quoted 2026-10-03

2.6363

▲ +1.02% over 6M

1 GNF = 2.6363 SLL · 1 SLL = 0.37932 GNF · Get this rate via the API

1 GNF buys 2.6363 SLL as of 2026-10-03, so 1 SLL buys 0.37932 GNF. Over the last 6 months, GNF/SLL traded between 2.3817 and 2.8223, averaged 2.6004 and rose 1.02%. The API holds daily GNF/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.

GNF/SLL over 6M

7D 30D 6M YTD 1Y 5Y

GNF/SLL over 6M: show the values

Point	GNF/SLL
2026-04-06	2.6097
2026-04-17	2.3900
2026-04-24	2.3897
2026-05-01	2.3890
2026-05-08	2.3817
2026-05-16	2.7323
2026-05-24	2.6063
2026-05-31	2.6056
2026-06-09	2.6050
2026-06-16	2.8223
2026-06-23	2.6021
2026-06-30	2.6034
2026-07-07	2.6195
2026-07-14	2.6056
2026-07-21	2.6071
2026-07-28	2.7582
2026-08-04	2.6056
2026-08-11	2.6021
2026-08-18	2.6098
2026-08-26	2.6027
2026-09-02	2.6045
2026-09-09	2.6076
2026-09-16	2.7998
2026-09-23	2.6035
2026-10-02	2.6116

High

2.8223

Low

2.3817

Average

2.6004

For developers

Get this rate via the API

One GET request returns the GNF/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=GNF&currencies=SLL"

JavaScript

const response = await fetch("https://api.fxfeed.io/v2/latest?api_key=YOUR_API_KEY&base=GNF&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=GNF&currencies=SLL").json()

Replace YOUR_API_KEY with the key from your dashboard.

GNF/SLL API questions

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

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

How far back does GNF/SLL historical data go?

Daily GNF/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 GNF/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/GNF · inverse 0.37932 GNF/USD 0.000114 GNF/EUR 0.000101 GNF/GBP 0.000086 GNF/JPY 0.01805 GNF/CHF 0.000094 GNF/AUD 0.000164

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