WST to SLL exchange rate API
Tala to Leone · quoted 2026-10-23
8325.62
▲ +0.34% over 7D
1 WST = 8325.62 SLL · 1 SLL = 0.000120 WST · Get this rate via the API
1 WST buys 8325.62 SLL as of 2026-10-23, so 1 SLL buys 0.000120 WST. Over the last 7 days, WST/SLL traded between 8237.57 and 8348.30, averaged 8308.15 and rose 0.34%. 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 |
|---|---|
| 2026-10-16 | 8297.229422 |
| 2026-10-17 | 8237.568321 |
| 2026-10-18 | 8289.365729 |
| 2026-10-19 | 8321.160794 |
| 2026-10-20 | 8318.879428 |
| 2026-10-21 | 8348.302323 |
| 2026-10-22 | 8327.113534 |
| 2026-10-23 | 8325.619785 |
High
8348.30
Low
8237.57
Average
8308.15
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.