--- title: "Priorbank Exchange Rate API: BYN Buy and Sell Rates as JSON" description: "Priorbank's branch cash buy / sell rates for 3 currencies against the Belarusian ruble, read hourly from the bank's own page and served as JSON with the National Bank of the Republic of Belarus official rate alongside. REST, JavaScript and Python examples." canonical: https://allratestoday.com/blog/priorbank-exchange-rate-api/ source: AllRatesToday (https://allratestoday.com/) — Markdown mirror of the page above; index of all pages at https://allratestoday.com/llms.txt generated: 2026-11-15T19:21:52.038Z --- Priorbank is a Belarusian bank in the Raiffeisen Bank International group. Its site lists branch cash, card and digital-bank buying and selling rates in Belarusian rubles for the US dollar, euro and Russian ruble. This guide shows how to read that board as JSON: what the rates mean, how they compare with the National Bank of the Republic of Belarus official rate and with other banks in Belarus, and the calls that return them. ## What the Priorbank board shows - **3 currencies against the Belarusian ruble**: EUR, RUB and USD. Every value is BYN per 1 unit of the foreign currency. - **The branch cash buy / sell pair.** Belarusian banks quote the US dollar, euro and Russian ruble (per 100) in Belarusian rubles, with separate branch-cash and card rates that change during the day. The National Bank of the Republic of Belarus official rate is shown next to each row. - **USD on 15 November 2026**: Priorbank bought at 2.97 and sold at 3.02 BYN, a spread of 1.67%. The National Bank of the Republic of Belarus official rate was 3.0026, so the bank's mid sat -0.25% from it. - **The bank's own timestamp.** The page prints a last-updated stamp (`15.11.2026 08:00` on the board above), returned as `bank_updated_at` next to our `captured_at`. - **Every day's board is kept permanently, from 14 November 2026.** Read one past day with `?date=`, or a range for one currency with the `/history` endpoint (paid plans). ## Spreads across the board On the 15 November 2026 board the spreads were USD 1.67%, EUR 2.12%, RUB 13.06%. Spread is (sell − buy) ÷ mid: what a round trip through the bank costs, before any fees. The API returns it on every row as `spread_pct`, so you can rank currencies or alert when a bank widens its board. ## USD at Priorbank and other banks in Belarus USD on the 7 boards AllRatesToday reads in Belarus, all captured on 15 November 2026 (the National Bank of the Republic of Belarus official rate was 3.0026): | Bank | Buy | Sell | Spread | Mid vs official | | --- | --- | --- | --- | --- | | Belarusbank | 2.975 | 3.035 | 2.00% | +0.08% | | **Priorbank** | 2.97 | 3.02 | 1.67% | -0.25% | | Alfa-Bank Belarus | 2.95 | 3.05 | 3.33% | -0.09% | | Belagroprombank | 2.985 | 3.02 | 1.17% | 0.00% | | BNB-Bank | 2.992 | 2.994 | 0.07% | -0.32% | | MTBank | 2.98 | 2.998 | 0.60% | -0.45% | | Bank RRB | 2.95 | 3.01 | 2.01% | -0.75% | Priorbank had the 4th narrowest USD spread of the 7. One call to `/api/v1/bank-rates/by` returns every board in the table at once. ## Get the board (REST) You need an API key; the [free key](https://allratestoday.com/register/) works. The full board: ``` curl "https://allratestoday.com/api/v1/bank-rates/by/priorbank" \ -H "Authorization: Bearer art_live_your_key" ``` What comes back (the 15 November 2026 board, first three rows): ``` { "bank": "priorbank", "name": "Priorbank", "country": "by", "quote_ccy": "BYN", "bank_updated_at": "15.11.2026 08:00", "basis": "Branch cash buy / sell", "captured_at": "2026-11-15T11:37:31.111Z", "rates": [ {"ccy":"EUR","buy":3.275,"sell":3.345,"mid":3.31,"spread_pct":2.115,"official":3.3312,"vs_official_pct":-0.636}, {"ccy":"RUB","buy":0.0322,"sell":0.0367,"mid":0.03445,"spread_pct":13.062,"official":0.036423000000000004,"vs_official_pct":-5.417}, {"ccy":"USD","buy":2.97,"sell":3.02,"mid":2.995,"spread_pct":1.669,"official":3.0026,"vs_official_pct":-0.253} ], "disclaimer": "…", "attribution": { … } } ``` One currency, with the row fields at the top level: ``` curl "https://allratestoday.com/api/v1/bank-rates/by/priorbank?ccy=USD" \ -H "Authorization: Bearer art_live_your_key" ``` ``` { "bank": "priorbank", "name": "Priorbank", "country": "by", "quote_ccy": "BYN", "bank_updated_at": "15.11.2026 08:00", "basis": "Branch cash buy / sell", "captured_at": "2026-11-15T11:37:31.111Z", "ccy": "USD", "buy": 2.97, "sell": 3.02, "mid": 2.995, "spread_pct": 1.669, "official": 3.0026, "vs_official_pct": -0.253, "disclaimer": "Retail buy/sell rates as displayed on each bank’s own website at capture time, quoted as home currency per 1 unit of foreign currency. Indicative only: banks change these through the day, apply them at the counter or in-app, and they are not official or reference rates. For the rate a regulation names, use the central-bank endpoints.", "attribution": { "source": "Board rates published by Priorbank on its own website, collected by AllRatesToday", "bank_url": "https://www.priorbank.by/offers/services/currency-exchange", "url": "https://allratestoday.com/bank-exchange-rate-api/by/priorbank/", "terms": "Public pages that show the rates need a visible link to allratestoday.com" } } ``` The board as it stood on a past day: ``` curl "https://allratestoday.com/api/v1/bank-rates/by/priorbank?date=2026-11-14" \ -H "Authorization: Bearer art_live_your_key" ``` One currency over a date range, one row per day (paid plans; add `&format=csv`, `xml` or `xlsx` for a file): ``` curl "https://allratestoday.com/api/v1/bank-rates/by/priorbank/history?ccy=USD&from=2026-11-14&to=2026-11-15" \ -H "Authorization: Bearer art_live_your_key" ``` ## JavaScript ``` npm install @allratestoday/sdk ``` ``` import { AllRatesToday } from '@allratestoday/sdk'; const client = new AllRatesToday({ apiKey: 'art_live_your_key' }); // Priorbank's USD row const r = await client.bankRates('by', { bank: 'priorbank', ccy: 'USD' }); console.log(`Priorbank buys USD at ${r.buy}, sells at ${r.sell} BYN`); // The board as it stood on a past day const past = await client.bankRates('by', { bank: 'priorbank', date: '2026-11-14' }); console.log(past.snapshot_date, past.rates.length); ``` ## Python ``` import requests r = requests.get( "https://allratestoday.com/api/v1/bank-rates/by/priorbank", headers={"Authorization": "Bearer art_live_your_key"}, timeout=10, ) r.raise_for_status() for row in r.json()["rates"]: print(row["ccy"], row["buy"], row["sell"], row["spread_pct"]) ``` ## Board rate or official rate? The National Bank of the Republic of Belarus rate is the one tax, accounting and customs rules in Belarus name; nobody transacts at it. Priorbank's board is the price a customer actually gets. The API puts both on every row: `official` is the central bank's rate for the same currency and `vs_official_pct` is how far the bank's mid sits from it. Use the board to show customers a real price, compare banks for a remittance, or keep a dated record of what the bank quoted; use the [National Bank of the Republic of Belarus endpoint](https://allratestoday.com/central-bank-rates-api/nbrb/) when a rule asks for the official rate. ## FAQ ### Where do the Priorbank rates come from? From the bank's own public rates page (https://www.priorbank.by/offers/services/currency-exchange), read hourly. AllRatesToday does not change the numbers: each row is the buy and sell price Priorbank shows, with the mid, the spread and the National Bank of the Republic of Belarus rate added. ### Are these the official BYN exchange rates? No. They are Priorbank's retail prices for customers. The official rate in Belarus is the National Bank of the Republic of Belarus rate, which the API returns as `official` on each row where the central bank has one, and in full from the central-bank endpoint. ### How often is the Priorbank board updated? AllRatesToday reads the page every hour. The bank's own last-updated stamp is returned as `bank_updated_at`, so you can tell a fresh read of an unchanged board from a new board. ### Can I get Priorbank rates for a past date? Yes, from 14 November 2026 onward; every day's board is kept permanently. Add `?date=YYYY-MM-DD` for one day: the response is the board captured that day, or the nearest earlier day within five days, with `date_requested` and `snapshot_date` added. For a range, `/history?ccy=USD&from=…&to=…` returns one row per day as JSON, CSV, XML or XLSX on paid plans. ### Do I need an API key? Yes. Commercial bank boards need an API key; any plan works, the free key included, and each call counts against the plan. Public pages or widgets that show the rates need a visible link to allratestoday.com. ## Priorbank rates, as JSON Free API key, hourly board captures, the official rate alongside. [Get your free API key](https://allratestoday.com/register/) ## Related - [Priorbank live board rates](https://allratestoday.com/bank-exchange-rate-api/by/priorbank/) - [All banks in Belarus side by side](https://allratestoday.com/bank-exchange-rate-api/by/) - [National Bank of the Republic of Belarus official rates API](https://allratestoday.com/central-bank-rates-api/nbrb/) - [Belarusbank exchange rate API guide](https://allratestoday.com/blog/belarusbank-exchange-rate-api/) - [Alfa-Bank Belarus exchange rate API guide](https://allratestoday.com/blog/alfa-bank-belarus-exchange-rate-api/) - [Belagroprombank exchange rate API guide](https://allratestoday.com/blog/belagroprombank-exchange-rate-api/) - [BNB-Bank exchange rate API guide](https://allratestoday.com/blog/bnb-bank-exchange-rate-api/) - [MTBank exchange rate API guide](https://allratestoday.com/blog/mtbank-exchange-rate-api/) - [Bank RRB exchange rate API guide](https://allratestoday.com/blog/bank-rrb-exchange-rate-api/) - [Every bank exchange rate API guide, by country](https://allratestoday.com/blog/bank-exchange-rate-api-guides/) - [Commercial bank rates API: every bank and country](https://allratestoday.com/bank-exchange-rate-api/)