GNF to SLL exchange rate API

Guinea Franc to Leone · quoted 2026-10-03

2.6363

▲ +0.78% over YTD

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 year to date, GNF/SLL traded between 2.3860 and 2.8094, averaged 2.5828 and rose 0.78%. 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 YTD

7D 30D 6M YTD 1Y 5Y

GNF/SLL over YTD: show the values

Point	GNF/SLL
2025-12-31	2.6160
2026-01-07	2.6110
2026-01-14	2.6228
2026-01-21	2.6296
2026-01-28	2.6003
2026-02-04	2.6155
2026-02-11	2.6045
2026-02-18	2.6150
2026-02-25	2.6097
2026-03-04	2.6137
2026-03-11	2.6090
2026-03-18	2.6061
2026-03-25	2.6045
2026-04-01	2.6091
2026-04-08	2.6163
2026-04-19	2.3860
2026-04-26	2.3928
2026-05-03	2.3897
2026-05-10	2.3963
2026-05-18	2.3867
2026-05-26	2.6072
2026-06-02	2.8094
2026-06-11	2.6042
2026-06-18	2.6048
2026-06-25	2.6082
2026-07-02	2.3910
2026-07-09	2.6075
2026-07-16	2.6096
2026-07-23	2.6156
2026-07-30	2.6071
2026-08-06	2.6067
2026-08-13	2.6843
2026-08-21	2.6048
2026-08-28	2.6055
2026-09-04	2.7906
2026-09-11	2.6068
2026-09-18	2.3897
2026-09-25	2.6047

High

2.8094

Low

2.3860

Average

2.5828

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