SLL to BTN exchange rate API
Leone to Ngultrum · quoted 2026-10-02
0.004177
▲ +12.19% over 5Y
1 SLL = 0.004177 BTN · 1 BTN = 239.4063 SLL · Get this rate via the API
1 SLL buys 0.004177 BTN as of 2026-10-02, so 1 BTN buys 239.4063 SLL. Over the last 5 years, SLL/BTN traded between 0.003700 and 0.004502, averaged 0.003925 and rose 12.19%. The API holds daily SLL/BTN 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/BTN over 5Y: show the values
| Point | SLL/BTN |
|---|---|
| 2024-08-24 | 0.003723 |
| 2024-10-07 | 0.003711 |
| 2024-11-06 | 0.003700 |
| 2024-12-06 | 0.003722 |
| 2025-01-05 | 0.003766 |
| 2025-02-04 | 0.003801 |
| 2025-03-06 | 0.003803 |
| 2025-04-06 | 0.003751 |
| 2025-05-06 | 0.003705 |
| 2025-06-07 | 0.003914 |
| 2025-07-07 | 0.003758 |
| 2025-08-06 | 0.003802 |
| 2025-09-05 | 0.003869 |
| 2025-10-06 | 0.003907 |
| 2025-11-05 | 0.003913 |
| 2025-12-05 | 0.003910 |
| 2026-01-05 | 0.003945 |
| 2026-02-04 | 0.003945 |
| 2026-03-06 | 0.003993 |
| 2026-04-05 | 0.004054 |
| 2026-05-09 | 0.004502 |
| 2026-06-12 | 0.004169 |
| 2026-07-12 | 0.004172 |
| 2026-08-11 | 0.004171 |
| 2026-09-11 | 0.004172 |
High
0.004502
Low
0.003700
Average
0.003925
Get this rate via the API
One GET request returns the SLL/BTN 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=SLL¤cies=BTN"const response = await fetch("https://api.fxfeed.io/v2/latest?api_key=YOUR_API_KEY&base=SLL¤cies=BTN");
const data = await response.json();import requests
data = requests.get("https://api.fxfeed.io/v2/latest?api_key=YOUR_API_KEY&base=SLL¤cies=BTN").json()Replace YOUR_API_KEY with the key from your dashboard.
SLL/BTN API questions
How do I get the SLL/BTN exchange rate from an API?
Send one GET request to https://api.fxfeed.io/v2/latest?api_key=YOUR_API_KEY&base=SLL¤cies=BTN, replacing YOUR_API_KEY with your own key. The JSON response carries the date and the latest SLL/BTN rate in rates.BTN.
How far back does SLL/BTN historical data go?
Daily SLL/BTN 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/BTN 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.