--- title: "J&T Banka Exchange Rate API: CZK Buy and Sell Rates as JSON" description: "J&T Banka's non-cash (devizy) buy / sell rates for 19 currencies against the Czech koruna, read hourly from the bank's own page and served as JSON with the Czech National Bank official rate alongside. REST, JavaScript and Python examples." canonical: https://allratestoday.com/blog/jandt-banka-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: 2026-11-15T19:12:04.435Z --- J&T Banka is a Czech private and investment bank, part of the J&T Finance Group. Its kurzovní lístek gives devizy (non-cash) and valuty (cash) buying and selling rates in koruna for 19 currencies. This guide shows how to read that board as JSON: what the rates mean, how they compare with the Czech National Bank official rate and with other banks in the Czech Republic, and the calls that return them. ## What the J&T board shows - **19 currencies against the Czech koruna**: AUD, CAD, CHF, CNY, DKK, EUR, GBP, HKD, HUF, ISK, JPY, MXN, NOK, PLN, RON, SEK, TRY, USD and ZAR. Every value is CZK per 1 unit of the foreign currency. - **The non-cash (devizy) buy / sell pair.** Czech banks publish two boards: valuty (cash, over the counter) and devizy (non-cash, used for transfers and card or account conversions). The pair here is the non-cash board. The Czech National Bank sets one official rate each business day, which accounting and tax rules refer to. - **USD on 15 November 2026**: J&T bought at 21.6612 and sold at 22.5455 CZK, a spread of 4.00%. The Czech National Bank official rate was 22.101, so the bank's mid sat +0.01% from it. - **The bank's own timestamp.** The page prints a last-updated stamp (`2026-11-13T14:21:00+01:00` on the board above), returned as `bank_updated_at` next to our `captured_at`. - **Every day's board is kept permanently, from 13 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 tightest spreads were AUD (4.00%), CHF (4.00%), EUR (4.00%) and the widest ISK (4.03%), MXN (4.01%), ZAR (4.01%). 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 J&T and other banks in the Czech Republic USD on the 10 boards AllRatesToday reads in the Czech Republic, all captured on 15 November 2026 (the Czech National Bank official rate was 22.101): | Bank | Buy | Sell | Spread | Mid vs official | | --- | --- | --- | --- | --- | | Komerční banka | 21.2453 | 22.9697 | 7.80% | +0.03% | | UniCredit Bank Czech Republic | 21.275 | 22.818 | 7.00% | -0.25% | | Raiffeisenbank (Czech Republic) | 21.322 | 22.864 | 6.98% | -0.04% | | Fio banka | 21.466 | 22.771 | 5.90% | +0.08% | | **J&T Banka** | 21.6612 | 22.5455 | 4.00% | +0.01% | | Air Bank | 21.375 | 22.833 | 6.60% | +0.01% | | mBank (Czech Republic) | 21.445 | 22.7714 | 6.00% | +0.03% | | BNP Paribas Czech Republic | 21.703 | 22.504 | 3.62% | +0.01% | | Trinity Bank | 21.438 | 22.764 | 6.00% | 0.00% | | PPF banka | 21.496 | 22.712 | 5.50% | +0.01% | J&T had the 2nd narrowest USD spread of the 10. One call to `/api/v1/bank-rates/cz` 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/cz/jtbank" \ -H "Authorization: Bearer art_live_your_key" ``` What comes back (the 15 November 2026 board, first three rows): ``` { "bank": "jtbank", "name": "J&T Banka", "country": "cz", "quote_ccy": "CZK", "bank_updated_at": "2026-11-13T14:21:00+01:00", "basis": "Non-cash (devizy) buy / sell", "captured_at": "2026-11-15T11:37:35.073Z", "rates": [ {"ccy":"AUD","buy":14.696,"sell":15.2959,"mid":14.99595,"spread_pct":4,"official":14.998,"vs_official_pct":-0.014}, {"ccy":"CAD","buy":15.194,"sell":15.8143,"mid":15.50415,"spread_pct":4.001,"official":15.499,"vs_official_pct":0.033}, {"ccy":"CHF","buy":25.8401,"sell":26.8949,"mid":26.3675,"spread_pct":4,"official":26.363,"vs_official_pct":0.017}, … 16 more currencies ], "disclaimer": "…", "attribution": { … } } ``` One currency, with the row fields at the top level: ``` curl "https://allratestoday.com/api/v1/bank-rates/cz/jtbank?ccy=USD" \ -H "Authorization: Bearer art_live_your_key" ``` ``` { "bank": "jtbank", "name": "J&T Banka", "country": "cz", "quote_ccy": "CZK", "bank_updated_at": "2026-11-13T14:21:00+01:00", "basis": "Non-cash (devizy) buy / sell", "captured_at": "2026-11-15T11:37:35.073Z", "ccy": "USD", "buy": 21.6612, "sell": 22.5455, "mid": 22.10335, "spread_pct": 4.001, "official": 22.101, "vs_official_pct": 0.011, "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 J&T Banka on its own website, collected by AllRatesToday", "bank_url": "https://www.jtbank.cz/kurzovni-listek", "url": "https://allratestoday.com/bank-exchange-rate-api/cz/jtbank/", "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/cz/jtbank?date=2026-11-13" \ -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/cz/jtbank/history?ccy=USD&from=2026-11-13&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' }); // J&T Banka's USD row const r = await client.bankRates('cz', { bank: 'jtbank', ccy: 'USD' }); console.log(`J&T buys USD at ${r.buy}, sells at ${r.sell} CZK`); // The board as it stood on a past day const past = await client.bankRates('cz', { bank: 'jtbank', date: '2026-11-13' }); console.log(past.snapshot_date, past.rates.length); ``` ## Python ``` import requests r = requests.get( "https://allratestoday.com/api/v1/bank-rates/cz/jtbank", 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 Czech National Bank rate is the one tax, accounting and customs rules in the Czech Republic name; nobody transacts at it. J&T'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 [Czech National Bank endpoint](https://allratestoday.com/central-bank-rates-api/cnb/) when a rule asks for the official rate. ## FAQ ### Where do the J&T Banka rates come from? From the bank's own public rates page (https://www.jtbank.cz/kurzovni-listek), read hourly. AllRatesToday does not change the numbers: each row is the buy and sell price J&T shows, with the mid, the spread and the Czech National Bank rate added. ### Are these the official CZK exchange rates? No. They are J&T's retail prices for customers. The official rate in the Czech Republic is the Czech National Bank 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 J&T 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 J&T rates for a past date? Yes, from 13 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. ## J&T Banka rates, as JSON Free API key, hourly board captures, the official rate alongside. [Get your free API key](https://allratestoday.com/register/) ## Related - [J&T Banka live board rates](https://allratestoday.com/bank-exchange-rate-api/cz/jtbank/) - [All banks in the Czech Republic side by side](https://allratestoday.com/bank-exchange-rate-api/cz/) - [Czech National Bank official rates API](https://allratestoday.com/central-bank-rates-api/cnb/) - [Komerční banka exchange rate API guide](https://allratestoday.com/blog/komercni-banka-exchange-rate-api/) - [UniCredit Bank Czech Republic exchange rate API guide](https://allratestoday.com/blog/unicredit-bank-czech-republic-exchange-rate-api/) - [Raiffeisenbank (Czech Republic) exchange rate API guide](https://allratestoday.com/blog/raiffeisenbank-czech-republic-exchange-rate-api/) - [Fio banka exchange rate API guide](https://allratestoday.com/blog/fio-banka-exchange-rate-api/) - [Air Bank exchange rate API guide](https://allratestoday.com/blog/air-bank-exchange-rate-api/) - [mBank (Czech Republic) exchange rate API guide](https://allratestoday.com/blog/mbank-czech-republic-exchange-rate-api/) - [BNP Paribas Czech Republic exchange rate API guide](https://allratestoday.com/blog/bnp-paribas-czech-republic-exchange-rate-api/) - [Trinity Bank exchange rate API guide](https://allratestoday.com/blog/trinity-bank-exchange-rate-api/) - [PPF banka exchange rate API guide](https://allratestoday.com/blog/ppf-banka-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/)