The Currency API
Open Exchange Rates
API2Cart
Twelve Data
Alpha Vantage
Currency Cloud
BestExchangeRates
BitcoinAverage Cryptocurrency API
Vim Python IDE
The Currency API
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Open Exchange Rates - Free, hourly-updated exchange rates - a simple, accurate, open-source JSON API. Free for personal use, a bargain for everybody else.
API2Cart - Unified shopping platform API integration solution
Twelve Data - The simplest and most effective way to access both realtime and historical stock, forex, cryptocurrency data, and over 100 technical indicators.
Alpha Vantage - Alpha Vantage offers free APIs in JSON and CSV formats for realtime and historical stock and forex data, digital/crypto currency data and over 50 technical indicators.
Currency Cloud - A world where moving money is easy
BestExchangeRates - Compare FX and save when you send or spend abroad