BTN to SLL exchange rate API
Ngultrum to Leone · quoted 2026-10-02
239.3513
▼ +6.90% over 1Y
1 BTN = 239.3513 SLL · 1 SLL = 0.004178 BTN · Get this rate via the API
1 BTN buys 239.3513 SLL as of 2026-10-02, so 1 SLL buys 0.004178 BTN. Over the last year, BTN/SLL traded between 220.5687 and 259.7057, averaged 245.8951 and fell 6.90%. The API holds daily BTN/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.
BTN/SLL over 1Y: show the values
| Point | BTN/SLL |
|---|---|
| 2025-10-02 | 257.1017 |
| 2025-10-09 | 256.5313 |
| 2025-10-16 | 259.7057 |
| 2025-10-23 | 258.4465 |
| 2025-10-30 | 256.8350 |
| 2025-11-06 | 256.0586 |
| 2025-11-13 | 255.8513 |
| 2025-11-20 | 258.6888 |
| 2025-11-27 | 256.9347 |
| 2025-12-04 | 252.9252 |
| 2025-12-12 | 255.1795 |
| 2025-12-19 | 254.4403 |
| 2025-12-26 | 254.6871 |
| 2026-01-02 | 253.7954 |
| 2026-01-09 | 254.2753 |
| 2026-01-16 | 253.0460 |
| 2026-01-23 | 250.6821 |
| 2026-01-30 | 248.9567 |
| 2026-02-06 | 254.3366 |
| 2026-02-13 | 252.4164 |
| 2026-02-20 | 252.1294 |
| 2026-02-27 | 251.8241 |
| 2026-03-06 | 250.4123 |
| 2026-03-13 | 248.1385 |
| 2026-03-20 | 245.5406 |
| 2026-03-27 | 243.0071 |
| 2026-04-03 | 247.1136 |
| 2026-04-14 | 225.0387 |
| 2026-04-21 | 225.2259 |
| 2026-04-28 | 222.2127 |
| 2026-05-05 | 220.5687 |
| 2026-05-12 | 239.2421 |
| 2026-05-20 | 236.2491 |
| 2026-05-28 | 237.1383 |
| 2026-06-04 | 238.6001 |
| 2026-06-13 | 239.8054 |
| 2026-06-20 | 242.0472 |
| 2026-06-27 | 241.7242 |
| 2026-07-04 | 239.1799 |
| 2026-07-11 | 239.5542 |
| 2026-07-18 | 236.7324 |
| 2026-07-25 | 245.2743 |
| 2026-08-01 | 239.9920 |
| 2026-08-08 | 242.6330 |
| 2026-08-15 | 239.6971 |
| 2026-08-23 | 255.8454 |
| 2026-08-30 | 240.3400 |
| 2026-09-06 | 242.5627 |
| 2026-09-13 | 240.0231 |
| 2026-09-20 | 239.0205 |
| 2026-09-27 | 239.4277 |
High
259.7057
Low
220.5687
Average
245.8951
Get this rate via the API
One GET request returns the BTN/SLL 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=BTN¤cies=SLL"const response = await fetch("https://api.fxfeed.io/v2/latest?api_key=YOUR_API_KEY&base=BTN¤cies=SLL");
const data = await response.json();import requests
data = requests.get("https://api.fxfeed.io/v2/latest?api_key=YOUR_API_KEY&base=BTN¤cies=SLL").json()Replace YOUR_API_KEY with the key from your dashboard.
BTN/SLL API questions
How do I get the BTN/SLL exchange rate from an API?
Send one GET request to https://api.fxfeed.io/v2/latest?api_key=YOUR_API_KEY&base=BTN¤cies=SLL, replacing YOUR_API_KEY with your own key. The JSON response carries the date and the latest BTN/SLL rate in rates.SLL.
How far back does BTN/SLL historical data go?
Daily BTN/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 BTN/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.