---
title: "İşbank Exchange Rate API: TRY Buy and Sell Rates as JSON"
description: "İşbank's branch board buy / sell rates for 12 currencies against the Turkish lira, read hourly from the bank's own page and served as JSON with the Central Bank of the Republic of Türkiye official rate alongside. REST, JavaScript and Python examples."
canonical: https://allratestoday.com/blog/isbank-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: 2026-11-13T18:12:14.565Z
---

Türkiye İş Bankası, founded in 1924, is the first national bank of the Turkish Republic and one of the country’s largest private banks. Its rates table gives buying and selling rates for about a dozen currencies against the lira, plus precious metals (not shown here). This guide shows how to read that board as JSON: what the rates mean, how they compare with the Central Bank of the Republic of Türkiye official rate and with other banks in Turkey, and the calls that return them.

## What the İşbank board shows

- **12 currencies against the Turkish lira**: AUD, CAD, CHF, DKK, EUR, GBP, JPY, KWD, NOK, SAR, SEK and USD. Every value is TRY per 1 unit of the foreign currency.
- **The branch board buy / sell pair.** Turkish bank boards move through the trading day and carry wide spreads. The Central Bank of the Republic of Türkiye publishes its official rates once each business day at 15:30 Istanbul time; those are the rates tax and customs use, not the bank boards.
- **USD on 13 November 2026**: İşbank bought at 49.6329 and sold at 50.8416 TRY, a spread of 2.41%. The Central Bank of the Republic of Türkiye official rate was 50.283, so the bank's mid sat -0.09% from it.
- **No timestamp on the bank's page.** İşbank does not print a last-updated time, so `bank_updated_at` is `null` and `captured_at` (when AllRatesToday read the page) is the only time available.
- **Every day's board is kept permanently, from 13 November 2026, the day collection started.** Read one past day with `?date=`, or a range for one currency with the `/history` endpoint (paid plans).

## Spreads across the board

On the 13 November 2026 board the tightest spreads were EUR (2.41%), USD (2.41%), JPY (2.42%) and the widest KWD (5.47%), SAR (5.19%), CHF (2.47%). 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 İşbank and other banks in Turkey

USD on the 3 boards AllRatesToday reads in Turkey, all captured on 13 November 2026 (the Central Bank of the Republic of Türkiye official rate was 50.283):

| Bank | Buy | Sell | Spread | Mid vs official |
| --- | --- | --- | --- | --- |
| **İşbank** | 49.6329 | 50.8416 | 2.41% | -0.09% |
| Ziraat Bankası | 49.8369 | 50.8919 | 2.10% | +0.16% |
| Akbank | 48.993 | 51.493 | 4.98% | -0.08% |

İşbank had the 2nd narrowest USD spread of the 3. One call to `/api/v1/bank-rates/tr` 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/tr/isbank" \
  -H "Authorization: Bearer art_live_your_key"
```

What comes back (the 13 November 2026 board, first three rows):

```
{
  "bank": "isbank",
  "name": "İşbank",
  "country": "tr",
  "quote_ccy": "TRY",
  "bank_updated_at": null,
  "basis": "Branch board buy / sell",
  "captured_at": "2026-11-13T13:36:15.549Z",
  "rates": [
    {"ccy":"AUD","buy":33.7404,"sell":34.5825,"mid":34.16145,"spread_pct":2.465,"official":34.242,"vs_official_pct":-0.235},
    {"ccy":"CAD","buy":34.835,"sell":35.6908,"mid":35.2629,"spread_pct":2.427,"official":35.3108,"vs_official_pct":-0.136},
    {"ccy":"CHF","buy":59.2419,"sell":60.7209,"mid":59.9814,"spread_pct":2.466,"official":60.2445,"vs_official_pct":-0.437},
    … 9 more currencies
  ],
  "disclaimer": "…",
  "attribution": { … }
}
```

One currency, with the row fields at the top level:

```
curl "https://allratestoday.com/api/v1/bank-rates/tr/isbank?ccy=USD" \
  -H "Authorization: Bearer art_live_your_key"
```

```
{
  "bank": "isbank",
  "name": "İşbank",
  "country": "tr",
  "quote_ccy": "TRY",
  "bank_updated_at": null,
  "basis": "Branch board buy / sell",
  "captured_at": "2026-11-13T13:36:15.549Z",
  "ccy": "USD",
  "buy": 49.6329,
  "sell": 50.8416,
  "mid": 50.23725,
  "spread_pct": 2.406,
  "official": 50.283,
  "vs_official_pct": -0.091,
  "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 İşbank on its own website, collected by AllRatesToday",
    "bank_url": "https://www.isbank.com.tr/en/foreign-exchange-rates",
    "url": "https://allratestoday.com/bank-exchange-rate-api/tr/isbank/",
    "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/tr/isbank?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/tr/isbank/history?ccy=USD&from=2026-11-13&to=2026-11-13" \
  -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' });

// İşbank's USD row
const r = await client.bankRates('tr', { bank: 'isbank', ccy: 'USD' });
console.log(`İşbank buys USD at ${r.buy}, sells at ${r.sell} TRY`);

// The board as it stood on a past day
const past = await client.bankRates('tr', { bank: 'isbank', 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/tr/isbank",
    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 Central Bank of the Republic of Türkiye rate is the one tax, accounting and customs rules in Turkey name; nobody transacts at it. İşbank'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 [Central Bank of the Republic of Türkiye endpoint](https://allratestoday.com/central-bank-rates-api/tcmb/) when a rule asks for the official rate.

## FAQ

### Where do the İşbank rates come from?

From the bank's own public rates page (https://www.isbank.com.tr/en/foreign-exchange-rates), read hourly. AllRatesToday does not change the numbers: each row is the buy and sell price İşbank shows, with the mid, the spread and the Central Bank of the Republic of Türkiye rate added.

### Are these the official TRY exchange rates?

No. They are İşbank's retail prices for customers. The official rate in Turkey is the Central Bank of the Republic of Türkiye 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 İşbank board updated?

AllRatesToday reads the page every hour. The bank prints no timestamp, so `captured_at` tells you when the rates were read.

### Can I get İşbank 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.

## İşbank rates, as JSON

Free API key, hourly board captures, the official rate alongside.

 [Get your free API key](https://allratestoday.com/register/)

## Related

- [İşbank live board rates](https://allratestoday.com/bank-exchange-rate-api/tr/isbank/)
- [All banks in Turkey side by side](https://allratestoday.com/bank-exchange-rate-api/tr/)
- [Central Bank of the Republic of Türkiye official rates API](https://allratestoday.com/central-bank-rates-api/tcmb/)
- [Ziraat Bankası exchange rate API guide](https://allratestoday.com/blog/ziraat-bankas-exchange-rate-api/)
- [Akbank exchange rate API guide](https://allratestoday.com/blog/akbank-exchange-rate-api/)
- [Commercial bank rates API: every bank and country](https://allratestoday.com/bank-exchange-rate-api/)