Free alternatives to Fixer.io
3 services, checked weekly
Fixer.io is a popular exchange-rate API, but its free plan is small. These free currency APIs give daily exchange rates for many currencies, and most need no key at all.
| Service | Category | API key | Formats | Free use |
|---|---|---|---|---|
| Frankfurter | Currency and finance | Not needed | JSON | Free, no key needed and no usage limits. |
| ExchangeRate-API (open access) | Currency and finance | Not needed | JSON | Free, with attribution required; the keyed plans give more frequent updates, conversion endpoints and historical data. |
| Free Currency Exchange Rates API (fawazahmed0) | Currency and finance | Not needed | JSON | Free. |