| API Name | URL | Pricing | Origin (Country/Organization) |
|---|---|---|---|
| NBP API | https://api.nbp.pl/en.html | Free | Poland (National Bank of Poland) |
| Exchange Rates API | https://exchangeratesapi.io/#pricing_plan | Paid but Free Plan Available | Austria (Managed by apilayer, part of Idera) |
| Currency Freaks | https://currencyfreaks.com/ | Free and Paid Plans Available | United States |
| Frankfurter API | https://frankfurter.dev/ | Free | - |
| ECB Data API | https://data.ecb.europa.eu/help/data-examples | Free | European Union (European Central Bank) |
| CurrencyAPI | https://currencyapi.com/pricing/ | Paid but Free Plan Available | Austria (Managed by apilayer, part of Idera) |
| Fixer API | https://fixer.io/#pricing_plan | Paid but Free Plan Available | Austria (Managed by apilayer, part of Idera) |
| Currencybeacon | https://currencybeacon.com/pricing | Paid but Free Plan Available | United States |
Few more trusted sources: