CurrencyAPI
FX & Currency Free key (no card)
AuthenticationFree key (no card)
Rate limitFree tier: 300 requests per month and 10 per minute, with daily rate updates
Documentation: currencyapi.com ยท Checked Sep 13, 2026
About
CurrencyAPI provides daily-updated foreign exchange rates for 180+ currencies through a simple REST API with a free key. You can use it to build a travel budget converter, to show product prices in a shopper's local currency, or to log daily exchange-rate history for a finance report. The free tier includes a few hundred requests a month, which is plenty for a personal converter or a small site.
Details
Free to start. You may need a free key, but no credit card.
Auth: Free key (no card)
Rate limit: Free tier: 300 requests per month and 10 per minute, with daily rate updates
Verified: 2026-09-13
Best for: personal business
Setup
- Sign up for a free account at currencyapi.com and confirm your email.
- Copy your API key from the dashboard.
- Open the docs at https://currencyapi.com/docs to see the endpoints.
- Try the example latest-rates URL in your browser with your key.
- Cache the daily rates in your app so your 300 monthly calls go far.
Example
https://api.currencyapi.com/v3/latest?apikey=YOUR_KEY&base_currency=USDUse cases
- Travel budget converter for an upcoming trip
- Show prices in a shopper's local currency
- Log daily exchange rates for a finance report