SLL to BTN exchange rate API
Leone to Ngultrum · quoted 2026-10-02
0.004177
▲ +3.03% over 6M
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 6 months, SLL/BTN traded between 0.003886 and 0.004570, averaged 0.004206 and rose 3.03%. 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 6M: show the values
| Point | SLL/BTN |
|---|---|
| 2026-04-05 | 0.004054 |
| 2026-04-16 | 0.004442 |
| 2026-04-23 | 0.004485 |
| 2026-04-30 | 0.004522 |
| 2026-05-07 | 0.004513 |
| 2026-05-15 | 0.004570 |
| 2026-05-23 | 0.004184 |
| 2026-05-30 | 0.004153 |
| 2026-06-06 | 0.004165 |
| 2026-06-15 | 0.004144 |
| 2026-06-22 | 0.004132 |
| 2026-06-29 | 0.004134 |
| 2026-07-06 | 0.004171 |
| 2026-07-13 | 0.004179 |
| 2026-07-20 | 0.004213 |
| 2026-07-27 | 0.004207 |
| 2026-08-03 | 0.004155 |
| 2026-08-10 | 0.004164 |
| 2026-08-17 | 0.004171 |
| 2026-08-25 | 0.004187 |
| 2026-09-01 | 0.004140 |
| 2026-09-08 | 0.004130 |
| 2026-09-15 | 0.004179 |
| 2026-09-22 | 0.003886 |
| 2026-09-30 | 0.003895 |
High
0.004570
Low
0.003886
Average
0.004206
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.