# Frankfurter API

Currency exchange rates from institutional sources, without a signup.

- Canonical guide: https://findpublicapis.com/apis/frankfurter/
- Category: Finance
- Authentication: No key
- Access: Free access
- Documentation reviewed: 2026-09-16 (not live uptime testing)
- Official documentation: https://frankfurter.dev/

## What you could build
Add a reference currency converter to a travel budget or expense tracker.

## Usage conditions
Reference rates are not live trading quotes. The v2 API supports provider filtering; cache results rather than repeatedly requesting the same rates.

## Example endpoint
https://api.frankfurter.dev/v2/rates?base=EUR&quotes=USD

Browser requests require provider CORS support. Confirm current access, pricing, and usage rights with the provider.