Frankfurter API: Free Exchange Rates from the European Central Bank

Need currency exchange rates? Frankfurter API provides ECB data — free, no key, 30+ currencies. Endpoints Latest rates: https://api.frankfurter.app/latest?from=USD&to=EUR,GBP,JPY Historical: https://api.frankfurter.app/2025-01-01?from=USD Time series: https://api.frankfurter.app/2025-01-01..2025-12-31?from=USD&to=EUR Response { "base" : "USD" , "date" : "2026-03-17" , "rates" :{ "EUR" : 0.867 , "GBP" : 0.750 , "JPY" : 158.95 }} Why Frankfurter? Free — no limits, no key ECB source — official European Central Bank data 30+ currencies supported Historical data back to 1999 Time series for trend analysis I built an Exchange Rate Scraper on Apify — search knotless_cadence exchange-rate .