Czech National Bank
Currency Exchange
A collection of exchange rates
No keyCORSHTTPS
Exchange Rate API
ExchangeRate-API provides a free and open-access API for real-time currency conversion and exchange rate data without the need for an API key. It supports various currency pairs and allows users to obtain current and historical exchange rates for personal or commercial use, subject to terms of attribution and rate limits.
Verified 4 days ago: 100% uptime
API key
Unconfirmed
HTTPS
Supported
Browser calls
No, needs a proxy
Status
Live · 100/100
What our checks found
- Health score
- 100/100
- Reliability
- 100%
- Average latency
- 298ms
Last checked 2026-09-18. Measured independently, not self-reported by the provider.
How to call it
A starting template for Exchange Rate API. Replace ENDPOINT with the path from the official documentation, which we link above rather than guess at.
# Authentication requirement is unconfirmed. Check the documentation before relying on this.
curl -s "https://www.exchangerate-api.com/ENDPOINT" \
-H "Authorization: Bearer YOUR_TOKEN" \
-H "Accept: application/json"This API does not send CORS headers, so a browser will block a direct call from your front end. Call it from your server, or put a small proxy in front of it.
Where this listing comes from
Aggregated from one public source (freepublicapis), then normalised and checked by us. If something here is wrong, tell us and we will correct it.
Other Currency Exchange APIs
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Currency Exchange
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No keyCORSHTTPS
paralelo.bo
Currency Exchange
Bolivia parallel-market USD/BOB exchange rate, aggregated from P2P sources every 60s
No keyCORSHTTPS
Exchangerate.dev
Currency Exchange
The exchangerate.dev API provides indicative foreign exchange rates for over 168 currency pairs, with live intraday updates for 16 currencies. It offers various endpoints for real-time currency conversion, historical rates, and detailed market information, making it ideal for developers needing accurate financial data.
No keyCORSHTTPS
Bank of Russia
Currency Exchange
Exchange rates and currency conversion
No keyHTTPS
Cambio Uruguay
Currency Exchange
Real-time buy/sell rates from every Uruguayan exchange house with conversion and history
No keyHTTPS
Exchange Rate API — common questions
Answered from what our own scheduled checks found, not from the provider's marketing.
Is Exchange Rate API free to use?
Exchange Rate API is listed in our free catalogue, but it requires some form of authentication, so you will need to register before your first call. Providers frequently reserve higher limits and commercial use for paid plans.
Does Exchange Rate API need an API key?
Exchange Rate API requires some form of authentication. Check the provider's documentation for which scheme it expects.
Can I call Exchange Rate API from browser JavaScript?
Not directly. Exchange Rate API did not return CORS headers when we checked, so the browser will block your page from reading the response even though the request itself succeeds. Call it from a server, or put a small proxy in front of it.
Is Exchange Rate API still working?
Yes, as of 2026-09-18. Our automated check reached Exchange Rate API and recorded a 100% reliability score with a median response time of 298 ms. We re-check on a schedule, and this page updates with the result.
Is Exchange Rate API available over HTTPS?
Yes. Exchange Rate API serves over HTTPS, so you can call it from a secure page without triggering a mixed-content block.