WST to SLL exchange rate API
Tala to Leone · quoted 2026-11-14
8256.29
▲ +0.21% over 7D
1 WST = 8256.29 SLL · 1 SLL = 0.000121 WST · Get this rate via the API
1 WST buys 8256.29 SLL as of 2026-11-14, so 1 SLL buys 0.000121 WST. Over the last 7 days, WST/SLL traded between 8239.38 and 8298.93, averaged 8263.69 and rose 0.21%. The API holds daily WST/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.
WST/SLL over 7D
Daily observations · gaps mean no published rate
WST/SLL over 7D: show the values
| Date | SLL |
|---|---|
| 2026-11-07 | 8239.3839 |
| 2026-11-08 | 8266.846626 |
| 2026-11-09 | 8270.728431 |
| 2026-11-10 | 8298.931989 |
| 2026-11-11 | 8272.759714 |
| 2026-11-12 | 8253.641439 |
| 2026-11-13 | 8250.949424 |
| 2026-11-14 | 8256.285097 |
High
8298.93
Low
8239.38
Average
8263.69
Statistics use all 8 daily observations in the selected period.
Get this rate via the API
One GET request returns the WST/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=WST¤cies=SLL"const response = await fetch("https://api.fxfeed.io/v2/latest?api_key=YOUR_API_KEY&base=WST¤cies=SLL");
const data = await response.json();import requests
data = requests.get("https://api.fxfeed.io/v2/latest?api_key=YOUR_API_KEY&base=WST¤cies=SLL").json()Replace YOUR_API_KEY with the key from your dashboard.
WST/SLL API questions
How do I get the WST/SLL exchange rate from an API?
Send one GET request to https://api.fxfeed.io/v2/latest?api_key=YOUR_API_KEY&base=WST¤cies=SLL, replacing YOUR_API_KEY with your own key. The JSON response carries the date and the latest WST/SLL rate in rates.SLL.
How far back does WST/SLL historical data go?
Daily WST/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 WST/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.