Free Exchange Rates API

Quick start

One request, no key. Get today's rates against the US dollar:

curl "https://api.quotelinks.com/v1/fx/latest?base=USD"

{"amount":1.0,"base":"USD","date":"2026-11-06","rates":{"AUD":1.45544,"BRL":5.50372,"CAD":1.40663,"CHF":0.818898, … ,"EUR":0.895656,"GBP":0.747112,"JPY":158.325, …}}

date is the ECB publication date of the rates. Each value in rates is how many units of that currency one unit of base buys (times amount).

Try it

Build a request, press Run, and see the live JSON from api.quotelinks.com.

Endpoints

Base URL: https://api.quotelinks.com/v1/fx/. All endpoints are GET. Currency codes are ISO 4217 and case-insensitive (usd works).

GET/v1/fx/latest

The most recent rates published by the ECB.

GET https://api.quotelinks.com/v1/fx/latest?base=USD&symbols=EUR,JPY&amount=100

{"amount":100.0,"base":"USD","date":"2026-11-06","rates":{"EUR":89.5656,"JPY":15832.5}}

GET/v1/fx/{date}

Rates for one date, YYYY-MM-DD, from 1999-01-04. For a weekend or TARGET holiday you get the last working day before it – check the date field. Same parameters as /latest.

GET https://api.quotelinks.com/v1/fx/2026-11-08?symbols=USD

{"amount":1.0,"base":"EUR","date":"2026-11-06","rates":{"USD":1.1165}}

GET/v1/fx/{start}..{end}

Daily rates from start to end, both inclusive. Leave end out (2026-01-01..) to go up to the latest date. Only ECB working days appear. Same parameters as /latest; use symbols to keep responses small.

GET https://api.quotelinks.com/v1/fx/2026-11-04..2026-11-06?base=USD&symbols=JPY

{"amount":1.0,"base":"USD","start_date":"2026-11-04","end_date":"2026-11-06","rates":{"2026-11-04":{"JPY":158.25}, … ,"2026-11-06":{"JPY":158.325}}}

GET/v1/fx/history/{currency}

The full daily history of one currency since 1999, against base (default EUR). Served as a pre-built file, so it is the fastest way to get long series for charts.

GET https://api.quotelinks.com/v1/fx/history/JPY?base=USD

{"amount":1.0,"base":"USD","start_date":"1999-01-04","end_date":"2026-11-06","rates":{"1999-01-04":{"JPY":113.436},"1999-01-05":{"JPY":111.077}, … ,"2026-11-06":{"JPY":158.325}}}

GET/v1/fx/convert

Convert an amount. Returns the same shape as /latest.

GET https://api.quotelinks.com/v1/fx/convert?from=USD&to=JPY&amount=100

{"amount":100.0,"base":"USD","date":"2026-11-06","rates":{"JPY":15832.5}}

GET/v1/fx/currencies

Currencies available in the latest rates, with their names.

{"AUD":"Australian Dollar","BRL":"Brazilian Real","CAD":"Canadian Dollar", … ,"USD":"United States Dollar","ZAR":"South African Rand"}

Currencies

The 30 currencies in the current ECB reference rates. Any of them can be the base.

Historical dates also include currencies the ECB no longer quotes – for example BGN, HRK, RUB or the pre-euro CYP – for the days they were published. The ECB does not publish some currencies at all (for example TWD, AED or SAR).

Data & updates

• Source: the European Central Bank's euro foreign exchange reference rates, fetched directly from the ECB.
• Schedule: the ECB publishes once per TARGET working day, around 16:00 CET. The API picks the new rates up shortly after.
• No weekend or holiday rates: nothing is published on Saturdays, Sundays or TARGET holidays (1 January, Good Friday, Easter Monday, 1 May, 25 and 26 December). Requests for those days return the previous working day.
• Other base currencies: the ECB publishes rates against the euro. For any other base, the API divides the two euro rates, e.g. JPY per USD = (JPY per EUR) ÷ (USD per EUR).
• Precision: with base EUR and amount 1 you get the ECB's numbers exactly as published. Everything else is rounded to 6 significant digits.
• Caching: current answers are cached for up to 1 hour, answers for past dates for up to 1 day.

Errors & limits

Errors return JSON with the HTTP status and a message:

{"status":404,"message":"not found"}

Switching from Frankfurter

The /latest, /{date}, /{start}..{end} and /currencies endpoints use the same paths, parameters (base, symbols, amount, from, to) and JSON shape as Frankfurter v1. Change only the base URL:

https://api.frankfurter.dev/v1/   →   https://api.quotelinks.com/v1/fx/

Differences to know about:

• Rates for non-EUR bases have 6 significant digits (Frankfurter uses 5), e.g. 158.325 instead of 158.33.
• Error responses also include the HTTP status next to message.
• Two extra endpoints: /history/{currency} and /convert.

Code examples

JavaScript (browser or Node 18+)

const r = await fetch("https://api.quotelinks.com/v1/fx/convert?from=USD&to=EUR&amount=250");
const data = await r.json();
console.log(`250 USD = ${data.rates.EUR} EUR on ${data.date}`);

Python

import json, urllib.request

url = "https://api.quotelinks.com/v1/fx/latest?base=USD&symbols=EUR,GBP,JPY"
with urllib.request.urlopen(url) as r:
    data = json.load(r)
print(data["date"], data["rates"])

PHP

$data = json_decode(file_get_contents(
    "https://api.quotelinks.com/v1/fx/2025-12-31?base=USD&symbols=EUR,GBP"
), true);
echo $data["rates"]["EUR"];

Source & license

The rates are the European Central Bank's euro foreign exchange reference rates. Under the ECB's statistics reuse policy the ECB allows its statistics to be reused provided the source is quoted. The Quotelinks API itself is for personal, non-commercial use, and redistribution of the data obtained from it is not allowed (see the Terms of Service). When you show the rates, add a credit such as:

Source: European Central Bank reference rates, via Quotelinks

Rates against base currencies other than the euro, and converted amounts, are calculated by Quotelinks from the ECB's euro rates; they are not published by the ECB.

The ECB publishes the reference rates for information purposes only. They are not intended for transactions or trading, and Quotelinks provides the API as is, without warranty. See the disclaimer.