---
title: "UI Bank Exchange Rate API: JPY Buy and Sell Rates as JSON"
description: "UI Bank's TTB / TTS (online foreign-currency deposit) rates for 3 currencies against the Japanese yen, read hourly from the bank's own page and served as JSON with the Bank of Japan official rate alongside. REST, JavaScript and Python examples."
canonical: https://allratestoday.com/blog/ui-bank-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: 2026-11-15T19:04:35.334Z
---

UI Bank is a digital bank in Tokyo owned by Tokyo Kiraboshi Financial Group. Its rates page lists the TTB and TTS for foreign-currency deposits against the yen for the US dollar, euro and Australian dollar. This guide shows how to read that board as JSON: what the rates mean, how they compare with the Bank of Japan official rate and with other banks in Japan, and the calls that return them.

## What the UI Bank board shows

- **3 currencies against the Japanese yen**: AUD, EUR and USD. Every value is JPY per 1 unit of the foreign currency.
- **The TTB / TTS (online foreign-currency deposit) pair.** The Bank of Japan does not publish a daily multi-currency reference table. Japanese accounting and tax practice use a bank’s TTM (the midpoint of its TTS selling and TTB buying rates for telegraphic transfers), and MUFG Bank’s board, set once a day at about 11:00 Tokyo time, is the standard one. The central bank comparison here is its USD/JPY Tokyo market rate.
- **USD on 15 November 2026**: UI Bank bought at 159.41 and sold at 159.91 JPY, a spread of 0.31%. The Bank of Japan official rate was 158.88, so the bank's mid sat +0.49% from it.
- **The bank's own timestamp.** The page prints a last-updated stamp (`2026-11-13 11:00 (Tokyo)` 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 spreads were USD 0.31%, EUR 0.42%, AUD 0.92%. 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 UI Bank and other banks in Japan

USD on the 72 boards AllRatesToday reads in Japan, all captured on 15 November 2026 (the Bank of Japan official rate was 158.88):

| Bank | Buy | Sell | Spread | Mid vs official |
| --- | --- | --- | --- | --- |
| MUFG Bank | 158.91 | 160.91 | 1.25% | +0.65% |
| Sumitomo Mitsui Banking Corporation | 158.9 | 160.9 | 1.25% | +0.64% |
| Sony Bank | 159.57 | 159.87 | 0.19% | +0.53% |
| Bank of Yokohama | 158.92 | 160.92 | 1.25% | +0.66% |
| Chiba Bank | 158.91 | 160.91 | 1.25% | +0.65% |
| Joyo Bank | 158.91 | 160.91 | 1.25% | +0.65% |
| SMBC Trust Bank (PRESTIA) | 158.69 | 160.69 | 1.25% | +0.51% |
| Keiyo Bank | 159.41 | 160.41 | 0.63% | +0.65% |
| Hachijuni Nagano Bank | 158.92 | 160.92 | 1.25% | +0.66% |
| Daishi Hokuetsu Bank | 158.91 | 160.91 | 1.25% | +0.65% |
| Hokuyo Bank | 158.91 | 160.91 | 1.25% | +0.65% |
| Gunma Bank | 158.91 | 160.91 | 1.25% | +0.65% |
| Toho Bank | 158.91 | 160.91 | 1.25% | +0.65% |
| Chiba Kogyo Bank | 158.93 | 160.93 | 1.25% | +0.66% |
| Hokkaido Bank | 158.91 | 160.91 | 1.25% | +0.65% |
| Yamagata Bank | 158.91 | 160.91 | 1.25% | +0.65% |
| Yamanashi Chuo Bank | 158.91 | 160.91 | 1.25% | +0.65% |
| Shonai Bank | 158.93 | 160.93 | 1.25% | +0.66% |
| Akita Bank | 158.91 | 160.91 | 1.25% | +0.65% |
| Bank of Fukuoka | 158.91 | 160.91 | 1.25% | +0.65% |
| Kumamoto Bank | 158.91 | 160.91 | 1.25% | +0.65% |
| Juhachi-Shinwa Bank | 158.91 | 160.91 | 1.25% | +0.65% |
| Hiroshima Bank | 158.91 | 160.91 | 1.25% | +0.65% |
| Shiga Bank | 158.91 | 160.91 | 1.25% | +0.65% |
| Bank of Nagoya | 158.91 | 160.91 | 1.25% | +0.65% |
| Hyakujushi Bank | 158.91 | 160.91 | 1.25% | +0.65% |
| Iyo Bank | 158.91 | 160.91 | 1.25% | +0.65% |
| Juroku Bank | 158.91 | 160.91 | 1.25% | +0.65% |
| Shikoku Bank | 158.91 | 160.91 | 1.25% | +0.65% |
| Hokuriku Bank | 158.91 | 160.91 | 1.25% | +0.65% |
| Ogaki Kyoritsu Bank | 158.91 | 160.91 | 1.25% | +0.65% |
| Yamaguchi Bank | 158.91 | 160.91 | 1.25% | +0.65% |
| Fukui Bank | 158.91 | 160.91 | 1.25% | +0.65% |
| Ehime Bank | 158.91 | 160.91 | 1.25% | +0.65% |
| Kochi Bank | 158.91 | 160.91 | 1.25% | +0.65% |
| Saga Bank | 158.91 | 160.91 | 1.25% | +0.65% |
| Kagawa Bank | 158.91 | 160.91 | 1.25% | +0.65% |
| Tsukuba Bank | 158.93 | 160.93 | 1.25% | +0.66% |
| Kitakyushu Bank | 158.91 | 160.91 | 1.25% | +0.65% |
| Momiji Bank | 158.91 | 160.91 | 1.25% | +0.65% |
| First Bank of Toyama | 158.91 | 160.91 | 1.25% | +0.65% |
| Bank of Kyoto | 158.91 | 160.91 | 1.25% | +0.65% |
| Miyazaki Bank | 158.91 | 160.91 | 1.25% | +0.65% |
| Aomori Michinoku Bank | 158.91 | 160.91 | 1.25% | +0.65% |
| Kita-Nippon Bank | 158.91 | 160.91 | 1.25% | +0.65% |
| San-ju-San Bank | 158.93 | 160.93 | 1.25% | +0.66% |
| 77 Bank | 158.91 | 160.91 | 1.25% | +0.65% |
| Shinkin Central Bank | 158.89 | 160.89 | 1.25% | +0.64% |
| Seto Shinkin Bank | 158.89 | 160.89 | 1.25% | +0.64% |
| Toyota Shinkin Bank | 158.91 | 160.91 | 1.25% | +0.65% |
| Tama Shinkin Bank | 158.91 | 160.91 | 1.25% | +0.65% |
| Saitama-ken Shinkin Bank | 158.89 | 160.89 | 1.25% | +0.64% |
| Nishio Shinkin Bank | 158.89 | 160.89 | 1.25% | +0.64% |
| Tokyo Higashi Shinkin Bank | 158.93 | 160.93 | 1.25% | +0.66% |
| Kyoto Shinkin Bank | 158.91 | 160.91 | 1.25% | +0.65% |
| Hamamatsu Iwata Shinkin Bank | 158.93 | 160.93 | 1.25% | +0.66% |
| Hekikai Shinkin Bank | 158.91 | 160.91 | 1.25% | +0.65% |
| Hiroshima Shinkin Bank | 158.89 | 160.89 | 1.25% | +0.64% |
| Sugamo Shinkin Bank | 158.91 | 160.91 | 1.25% | +0.65% |
| Gifu Shinkin Bank | 158.91 | 160.91 | 1.25% | +0.65% |
| Fuji Shinkin Bank | 158.89 | 160.89 | 1.25% | +0.64% |
| Okazaki Shinkin Bank | 158.91 | 160.91 | 1.25% | +0.65% |
| GMO Aozora Net Bank | 159.77 | 159.85 | 0.05% | +0.58% |
| Kofu Shinkin Bank | 158.91 | 160.91 | 1.25% | +0.65% |
| Amagasaki Shinkin Bank | 158.91 | 160.91 | 1.25% | +0.65% |
| Osaka Shinkin Bank | 158.93 | 160.93 | 1.25% | +0.66% |
| Bank of China Tokyo | 158.72 | 160.72 | 1.25% | +0.53% |
| SBJ Bank | 158.85 | 160.85 | 1.25% | +0.61% |
| Kyoto Chuo Shinkin Bank | 158.89 | 160.89 | 1.25% | +0.64% |
| **UI Bank** | 159.41 | 159.91 | 0.31% | +0.49% |
| Shoko Chukin Bank | 158.91 | 160.91 | 1.25% | +0.65% |
| Bank of Okinawa | 158.91 | 160.91 | 1.25% | +0.65% |

UI Bank had the 3rd narrowest USD spread of the 72. One call to `/api/v1/bank-rates/jp` 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/jp/uibank" \
  -H "Authorization: Bearer art_live_your_key"
```

What comes back (the 15 November 2026 board, first three rows):

```
{
  "bank": "uibank",
  "name": "UI Bank",
  "country": "jp",
  "quote_ccy": "JPY",
  "bank_updated_at": "2026-11-13 11:00 (Tokyo)",
  "basis": "TTB / TTS (online foreign-currency deposit)",
  "captured_at": "2026-11-15T11:46:18.961Z",
  "rates": [
    {"ccy":"AUD","buy":107.69,"sell":108.69,"mid":108.19,"spread_pct":0.924,"official":null,"vs_official_pct":null},
    {"ccy":"EUR","buy":175.97,"sell":176.72,"mid":176.345,"spread_pct":0.425,"official":null,"vs_official_pct":null},
    {"ccy":"USD","buy":159.41,"sell":159.91,"mid":159.66,"spread_pct":0.313,"official":158.88,"vs_official_pct":0.491}
  ],
  "disclaimer": "…",
  "attribution": { … }
}
```

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

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

```
{
  "bank": "uibank",
  "name": "UI Bank",
  "country": "jp",
  "quote_ccy": "JPY",
  "bank_updated_at": "2026-11-13 11:00 (Tokyo)",
  "basis": "TTB / TTS (online foreign-currency deposit)",
  "captured_at": "2026-11-15T11:46:18.961Z",
  "ccy": "USD",
  "buy": 159.41,
  "sell": 159.91,
  "mid": 159.66,
  "spread_pct": 0.313,
  "official": 158.88,
  "vs_official_pct": 0.491,
  "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 UI Bank on its own website, collected by AllRatesToday",
    "bank_url": "https://www.uibank.co.jp/rate_fee/visitor_rate/",
    "url": "https://allratestoday.com/bank-exchange-rate-api/jp/uibank/",
    "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/jp/uibank?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/jp/uibank/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' });

// UI Bank's USD row
const r = await client.bankRates('jp', { bank: 'uibank', ccy: 'USD' });
console.log(`UI Bank buys USD at ${r.buy}, sells at ${r.sell} JPY`);

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

## FAQ

### Where do the UI Bank rates come from?

From the bank's own public rates page (https://www.uibank.co.jp/rate_fee/visitor_rate/), read hourly. AllRatesToday does not change the numbers: each row is the buy and sell price UI Bank shows, with the mid, the spread and the Bank of Japan rate added.

### Are these the official JPY exchange rates?

No. They are UI Bank's retail prices for customers. The official rate in Japan is the Bank of Japan 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 UI Bank 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 UI Bank 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.

## UI Bank rates, as JSON

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

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

## Related

- [UI Bank live board rates](https://allratestoday.com/bank-exchange-rate-api/jp/uibank/)
- [All banks in Japan side by side](https://allratestoday.com/bank-exchange-rate-api/jp/)
- [Bank of Japan official rates API](https://allratestoday.com/central-bank-rates-api/boj/)
- [MUFG Bank exchange rate API guide](https://allratestoday.com/blog/mufg-bank-exchange-rate-api/)
- [Sumitomo Mitsui Banking Corporation exchange rate API guide](https://allratestoday.com/blog/sumitomo-mitsui-banking-corporation-exchange-rate-api/)
- [Sony Bank exchange rate API guide](https://allratestoday.com/blog/sony-bank-exchange-rate-api/)
- [Bank of Yokohama exchange rate API guide](https://allratestoday.com/blog/bank-of-yokohama-exchange-rate-api/)
- [Chiba Bank exchange rate API guide](https://allratestoday.com/blog/chiba-bank-exchange-rate-api/)
- [Joyo Bank exchange rate API guide](https://allratestoday.com/blog/joyo-bank-exchange-rate-api/)
- [SMBC Trust Bank (PRESTIA) exchange rate API guide](https://allratestoday.com/blog/smbc-trust-bank-prestia-exchange-rate-api/)
- [Keiyo Bank exchange rate API guide](https://allratestoday.com/blog/keiyo-bank-exchange-rate-api/)
- [Hachijuni Nagano Bank exchange rate API guide](https://allratestoday.com/blog/hachijuni-nagano-bank-exchange-rate-api/)
- [Daishi Hokuetsu Bank exchange rate API guide](https://allratestoday.com/blog/daishi-hokuetsu-bank-exchange-rate-api/)
- [Hokuyo Bank exchange rate API guide](https://allratestoday.com/blog/hokuyo-bank-exchange-rate-api/)
- [Gunma Bank exchange rate API guide](https://allratestoday.com/blog/gunma-bank-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/)