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SLL to STD exchange rate API

Leone to Dobra · quoted 2026-10-03

0.95164

▼ +2.79% over 5Y

1 SLL = 0.95164 STD · 1 STD = 1.0508 SLL · Get this rate via the API

1 SLL buys 0.95164 STD as of 2026-10-03, so 1 STD buys 1.0508 SLL. Over the last 5 years, SLL/STD traded between 0.91311 and 1.0475, averaged 0.96010 and fell 2.79%. The API holds daily SLL/STD 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/STD over 5Y

SLL/STD over 5Y: show the values
PointSLL/STD
2024-08-240.97895
2024-10-070.98736
2024-11-061.00150
2024-12-061.03089
2025-01-051.04748
2025-02-041.04403
2025-03-061.00851
2025-04-060.97390
2025-05-060.96013
2025-06-070.99014
2025-07-070.92115
2025-08-060.92432
2025-09-050.93084
2025-10-060.92658
2025-11-050.94838
2025-12-050.92216
2026-01-050.92462
2026-02-040.91311
2026-03-060.92611
2026-04-050.93278
2026-05-090.98705
2026-06-120.93295
2026-07-120.93880
2026-08-110.93363
2026-09-110.92569

High

1.0475

Low

0.91311

Average

0.96010

For developers

Get this rate via the API

One GET request returns the SLL/STD rate as JSON. The free plan includes 1,000 requests a month, with no credit card required.

cURL
curl -X GET "https://api.fxfeed.io/v2/latest?api_key=YOUR_API_KEY&base=SLL&currencies=STD"
JavaScript
const response = await fetch("https://api.fxfeed.io/v2/latest?api_key=YOUR_API_KEY&base=SLL&currencies=STD");
const data = await response.json();
Python
import requests

data = requests.get("https://api.fxfeed.io/v2/latest?api_key=YOUR_API_KEY&base=SLL&currencies=STD").json()

Replace YOUR_API_KEY with the key from your dashboard.

SLL/STD API questions

How do I get the SLL/STD exchange rate from an API?

Send one GET request to https://api.fxfeed.io/v2/latest?api_key=YOUR_API_KEY&base=SLL&currencies=STD, replacing YOUR_API_KEY with your own key. The JSON response carries the date and the latest SLL/STD rate in rates.STD.

How far back does SLL/STD historical data go?

Daily SLL/STD 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/STD 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.