Currency-api
Currency Exchange
Free Currency Exchange Rates API with 150+ Currencies & No Rate Limits
150+ currency rates, no rate limits, served from GitHub Pages / jsDelivr CDN.
Auth
No Auth
HTTPS
Yes
CORS
Yes
Common Use Cases
- •Build financial dashboards with real-time market data
- •Create currency conversion tools for e-commerce
- •Develop trading analysis and portfolio tracking apps
Integration Guide
Review the API Documentation
Visit the official Currency-api documentation to understand available endpoints, request formats, and response structures. Familiarize yourself with the API's rate limits and usage policies before integration.
No Authentication Required
Good news — Currency-api does not require any authentication. You can start making API requests directly without registering for an API key or setting up OAuth credentials.
Use HTTPS for Secure Requests
Currency-api supports HTTPS, ensuring encrypted communication. Always use HTTPS endpoints in production to protect data in transit and comply with modern web security standards.
CORS Enabled — Direct Browser Access
Currency-api has CORS enabled, meaning you can make requests directly from the browser. This is ideal for frontend-only applications built with React, Vue, or vanilla JavaScript.
Implement and Test
Write your API integration code, start with a simple test request to verify connectivity. Implement proper error handling for network failures, rate limits, and invalid responses. Monitor your API usage to stay within any limits.
Code Examples
JavaScript / Fetch API:
// JavaScript example
fetch("https://github.com/fawazahmed0/currency-api#readme")
.then(response => {
if (!response.ok) {
throw new Error(`HTTP error! status: ${response.status}`);
}
return response.json();
})
.then(data => {
console.log("API response:", data);
})
.catch(error => {
console.error("Error fetching from Currency-api:", error);
});Python / Requests:
# Python example
import requests
response = requests.get("https://github.com/fawazahmed0/currency-api#readme")
if response.status_code == 200:
data = response.json()
print("API response:", data)
else:
print(f"Error: {response.status_code}")Frequently Asked Questions
Is Currency-api free to use?
Do I need an API key for Currency-api?
Can I use Currency-api in a browser-based application?
What category does Currency-api belong to?
Is Currency-api secure?
Editor's Notes & Deep Dive
Key Features
- →GET /v1/latest/{from}.json returns all rates from a base currency
- →GET /v1/historical/{date}/{from}.json returns historical rates
- →Files are static JSON hosted on jsDelivr CDN — effectively unlimited, no key
- →150+ currencies including obscure ones like South Sudanese Pound
Rate Limits & Quotas
No published limit; the data is served from CDN edge caches. Treat as unlimited for normal use.
Known Issues & Pitfalls
- !Rates are end-of-day snapshots, not real-time FX
- !Historical data starts from 2022-01-01 for most currencies
- !The 'latest' file can lag by up to 24 hours depending on CDN cache
How It Compares
More reliable than exchangerate.host (now behind a paid key) and broader than frankfurter.app. The CDN-hosted model means it never rate-limits you.
Sample Response
{
"date": "2026-07-19",
"usd": {
"eur": 0.92,
"gbp": 0.78,
"jpy": 149.50
}
}Pro Tips
- ✓Use the jsDelivr mirror URL for best latency: cdn.jsdelivr.net/gh/fawazahmed0/currency-api@1/latest/currencies/usd.json
- ✓Cache the latest file for 1 hour — the source only updates daily