License
Software
The Frankfurter codebase, documentation, and Docker images are open source and released under the MIT License.
Data & Reference Rates
Frankfurter aggregates foreign exchange reference rates published by central banks and official monetary authorities. Exchange rates are public reference data provided for informational purposes.
Frankfurter does not own the rates and grants no rights beyond those of each provider. Where a provider publishes terms of use, they apply, and they're linked below.
Disclaimer
Rates and the API are provided as is, without warranty of any kind, and may be delayed, incomplete, or revised. Blended rates are calculated by Frankfurter and are not an official rate of any institution. For tax, accounting, or legal use, check the figure against the provider's own publication. Frankfurter is not liable for any loss arising from their use.
Provider Terms
Terms of use for each institution Frankfurter sources rates from, where it publishes them.