ratesapi

How to Use This API

1. Latest Exchange Rates (Base: EUR)

https://api.ratesapi.io/api/latest

Returns all exchange rates relative to EUR. Rates are sourced from the European Central Bank.

2. Change Base Currency to USD

https://api.ratesapi.io/api/latest?base=USD

Get all rates relative to USD instead of EUR.

3. Convert Between Specific Currencies

https://api.ratesapi.io/api/latest?base=GBP&symbols=USD,EUR,JPY

Get GBP-to-USD, GBP-to-EUR, and GBP-to-JPY rates in a single request.

4. Historical Rates for a Specific Date

https://api.ratesapi.io/api/2024-01-15?base=USD&symbols=EUR,GBP

Get exchange rates on a specific historical date. Format: YYYY-MM-DD. Data goes back to 1999.

5. Time-Series Data

https://api.ratesapi.io/api/2024-01-01..2024-01-31?base=EUR&symbols=USD

Get EUR/USD rates for every day in January 2024. Great for charts and trend analysis.

6. JavaScript — Currency Converter

async function convertCurrency(amount, from, to) {
  const resp = await fetch(
    `https://api.ratesapi.io/api/latest?base=${from}&symbols=${to}`
  );
  const data = await resp.json();
  const rate = data.rates[to];
  return { rate, result: amount * rate };
}

async function showConversion() {
  const { rate, result } = await convertCurrency(100, 'USD', 'EUR');
  console.log(`100 USD = ${result.toFixed(2)} EUR (rate: ${rate})`);
}

showConversion();

import requests

def compare_rates():
    # Get USD and GBP vs EUR
    resp = requests.get(
        'https://api.ratesapi.io/api/latest',
        params={'symbols': 'USD,GBP,JPY'}
    )
    data = resp.json()
    
    base = data['base']
    print(f"Exchange rates (base: {base}):")
    for currency, rate in data['rates'].items():
        inverse = 1 / rate if rate else 0
        print(f"  {currency}: {rate:.4f} (1 {currency} = {inverse:.4f} EUR)")

compare_rates()