--- title: "Indian Overseas Bank Exchange Rate API: INR Buy and Sell Rates as JSON" description: "Indian Overseas Bank's telegraphic transfer rates for 15 currencies against the Indian rupee, read hourly from the bank's own page and served as JSON with the Reserve Bank of India official rate alongside. REST, JavaScript and Python examples." canonical: https://allratestoday.com/blog/indian-overseas-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: 2026-11-13T18:12:18.850Z --- Indian Overseas Bank was founded in 1937 specifically to handle foreign exchange and overseas banking, and it still publishes a detailed daily board. Its page is one of the few that prints a unit column, so the currencies quoted per hundred units are unambiguous. This guide shows how to read that board as JSON: what the rates mean, how they compare with the Reserve Bank of India official rate and with other banks in India, and the calls that return them. ## What the IOB board shows - **15 currencies against the Indian rupee**: AED, AUD, CAD, CHF, DKK, EUR, GBP, HKD, JPY, LKR, NOK, NZD, SEK, SGD and USD. Every value is INR per 1 unit of the foreign currency. - **The telegraphic transfer pair.** Indian banks publish a daily card rate with separate columns for telegraphic transfers, bills, forex travel cards and currency notes; the pair here is the TT rate, which an inbound remittance is converted at. The Reserve Bank’s reference rate is published once each afternoon and is a reference for accounting, not a price anyone transacts at, so a bank’s buying rate always sits below it. - **USD on 13 November 2026**: IOB bought at 93.81 and sold at 94.37 INR, a spread of 0.59%. The Reserve Bank of India official rate was 94.1997, so the bank's mid sat -0.12% from it. - **No timestamp on the bank's page.** IOB 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 24 September 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 13 November 2026 board the tightest spreads were USD (0.59%), EUR (1.00%), GBP (1.00%) and the widest LKR (1.49%), AED (1.48%), SEK (1.17%). 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 IOB and other banks in India USD on the 11 boards AllRatesToday reads in India, all captured on 13 November 2026 (the Reserve Bank of India official rate was 94.1997): | Bank | Buy | Sell | Spread | Mid vs official | | --- | --- | --- | --- | --- | | State Bank of India | 93.5 | 94.35 | 0.91% | -0.29% | | Bank of Baroda | 93.6 | 94.55 | 1.01% | -0.13% | | Canara Bank | 93.7675 | 94.5375 | 0.82% | -0.05% | | **Indian Overseas Bank** | 93.81 | 94.37 | 0.59% | -0.12% | | Axis Bank | 92.44 | 95.73 | 3.50% | -0.12% | | Bank of Maharashtra | 93.48 | 94.68 | 1.28% | -0.13% | | Union Bank of India | 93.37 | 94.16 | 0.84% | -0.46% | | HDFC Bank | 92.5 | 95.88 | 3.59% | -0.01% | | ICICI Bank | 92.66 | 95.58 | 3.10% | -0.09% | | Kotak Mahindra Bank | 92.61 | 95.88 | 3.47% | +0.05% | | Punjab National Bank | 93.95 | 94.65 | 0.74% | +0.11% | IOB had the narrowest USD spread of the 11. One call to `/api/v1/bank-rates/in` 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/in/iob" \ -H "Authorization: Bearer art_live_your_key" ``` What comes back (the 13 November 2026 board, first three rows): ``` { "bank": "iob", "name": "Indian Overseas Bank", "country": "in", "quote_ccy": "INR", "bank_updated_at": null, "basis": "Telegraphic transfer", "captured_at": "2026-11-13T13:34:48.682Z", "rates": [ {"ccy":"AED","buy":25.42,"sell":25.8,"mid":25.61,"spread_pct":1.484,"official":25.6477,"vs_official_pct":-0.147}, {"ccy":"AUD","buy":63.65,"sell":64.35,"mid":64,"spread_pct":1.094,"official":null,"vs_official_pct":null}, {"ccy":"CAD","buy":65.61,"sell":66.34,"mid":65.975,"spread_pct":1.106,"official":null,"vs_official_pct":null}, … 12 more currencies ], "disclaimer": "…", "attribution": { … } } ``` One currency, with the row fields at the top level: ``` curl "https://allratestoday.com/api/v1/bank-rates/in/iob?ccy=USD" \ -H "Authorization: Bearer art_live_your_key" ``` ``` { "bank": "iob", "name": "Indian Overseas Bank", "country": "in", "quote_ccy": "INR", "bank_updated_at": null, "basis": "Telegraphic transfer", "captured_at": "2026-11-13T13:34:48.682Z", "ccy": "USD", "buy": 93.81, "sell": 94.37, "mid": 94.09, "spread_pct": 0.595, "official": 94.1997, "vs_official_pct": -0.116, "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 Indian Overseas Bank on its own website, collected by AllRatesToday", "bank_url": "https://www.iob.bank.in/en/forex", "url": "https://allratestoday.com/bank-exchange-rate-api/in/iob/", "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/in/iob?date=2026-11-06" \ -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/in/iob/history?ccy=USD&from=2026-09-24&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' }); // Indian Overseas Bank's USD row const r = await client.bankRates('in', { bank: 'iob', ccy: 'USD' }); console.log(`IOB buys USD at ${r.buy}, sells at ${r.sell} INR`); // The board as it stood on a past day const past = await client.bankRates('in', { bank: 'iob', date: '2026-11-06' }); console.log(past.snapshot_date, past.rates.length); ``` ## Python ``` import requests r = requests.get( "https://allratestoday.com/api/v1/bank-rates/in/iob", 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 Reserve Bank of India rate is the one tax, accounting and customs rules in India name; nobody transacts at it. IOB'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 [Reserve Bank of India endpoint](https://allratestoday.com/central-bank-rates-api/rbi/) when a rule asks for the official rate. ## FAQ ### Where do the Indian Overseas Bank rates come from? From the bank's own public rates page (https://www.iob.bank.in/en/forex), read hourly. AllRatesToday does not change the numbers: each row is the buy and sell price IOB shows, with the mid, the spread and the Reserve Bank of India rate added. ### Are these the official INR exchange rates? No. They are IOB's retail prices for customers. The official rate in India is the Reserve Bank of India 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 IOB 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 IOB rates for a past date? Yes, from 24 September 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. ## Indian Overseas Bank rates, as JSON Free API key, hourly board captures, the official rate alongside. [Get your free API key](https://allratestoday.com/register/) ## Related - [Indian Overseas Bank live board rates](https://allratestoday.com/bank-exchange-rate-api/in/iob/) - [All banks in India side by side](https://allratestoday.com/bank-exchange-rate-api/in/) - [Reserve Bank of India official rates API](https://allratestoday.com/central-bank-rates-api/rbi/) - [State Bank of India exchange rate API guide](https://allratestoday.com/blog/state-bank-of-india-exchange-rate-api/) - [Bank of Baroda exchange rate API guide](https://allratestoday.com/blog/bank-of-baroda-exchange-rate-api/) - [Canara Bank exchange rate API guide](https://allratestoday.com/blog/canara-bank-exchange-rate-api/) - [Axis Bank exchange rate API guide](https://allratestoday.com/blog/axis-bank-exchange-rate-api/) - [Bank of Maharashtra exchange rate API guide](https://allratestoday.com/blog/bank-of-maharashtra-exchange-rate-api/) - [Union Bank of India exchange rate API guide](https://allratestoday.com/blog/union-bank-of-india-exchange-rate-api/) - [HDFC Bank exchange rate API guide](https://allratestoday.com/blog/hdfc-bank-exchange-rate-api/) - [ICICI Bank exchange rate API guide](https://allratestoday.com/blog/icici-bank-exchange-rate-api/) - [Kotak Mahindra Bank exchange rate API guide](https://allratestoday.com/blog/kotak-mahindra-bank-exchange-rate-api/) - [Punjab National Bank exchange rate API guide](https://allratestoday.com/blog/punjab-national-bank-exchange-rate-api/) - [Commercial bank rates API: every bank and country](https://allratestoday.com/bank-exchange-rate-api/)