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BYN to CUP exchange rate API

Belarussian Ruble to Cuban Peso · quoted 2026-10-07

7.7976

▲ +6.33% over 5Y

1 BYN = 7.7976 CUP · 1 CUP = 0.12824 BYN · Get this rate via the API

1 BYN buys 7.7976 CUP as of 2026-10-07, so 1 CUP buys 0.12824 BYN. Over the last 5 years, BYN/CUP traded between 7.0380 and 9.4441, averaged 7.8249 and rose 6.33%. The API holds daily BYN/CUP 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.

BYN/CUP over 5Y

BYN/CUP over 5Y: show the values
PointBYN/CUP
2024-08-247.3336
2024-10-077.3520
2024-11-067.3283
2024-12-067.3366
2025-01-057.3282
2025-02-047.3441
2025-03-067.3250
2025-04-067.2676
2025-05-067.3353
2025-06-077.3230
2025-07-077.3237
2025-08-067.2083
2025-09-057.1010
2025-10-067.0823
2025-11-057.0380
2025-12-058.3184
2026-01-058.1306
2026-02-048.3508
2026-03-068.1699
2026-04-058.0965
2026-05-059.3641
2026-06-069.4441
2026-07-089.2357
2026-08-078.9070
2026-09-078.6049

High

9.4441

Low

7.0380

Average

7.8249

For developers

Get this rate via the API

One GET request returns the BYN/CUP 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=BYN&currencies=CUP"
JavaScript
const response = await fetch("https://api.fxfeed.io/v2/latest?api_key=YOUR_API_KEY&base=BYN&currencies=CUP");
const data = await response.json();
Python
import requests

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

Replace YOUR_API_KEY with the key from your dashboard.

BYN/CUP API questions

How do I get the BYN/CUP exchange rate from an API?

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

How far back does BYN/CUP historical data go?

Daily BYN/CUP 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 BYN/CUP 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.