Open Exchange Rates provides a simple, lightweight and portable JSON API with live and historical foreign exchange rates for more than 200...
Starting from $12.99/month
Best CurrencyAPI Alternatives ranked by AI · updated Aug 2026
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CurrencyAPI is a developer-focused service for current, historical, and conversion exchange-rate data. It targets web and mobile applications with REST endpoints, SDK-oriented documentation, and usage-based plans.
Top 6 CurrencyAPI alternatives
ExchangeRate-API is a reliable currency exchange rate API that provides real-time and historical foreign exchange rates.
Starting from $9.99 per month
Alpha Vantage offers APIs for equities, foreign exchange, cryptocurrencies, technical indicators, and company fundamentals. It serves developers, educators, researchers, and small finance...
Pros
- Strong beginner-friendly documentation and broad technical-indicator coverage
- Includes a usable free tier for prototypes and educational projects
- Covers stocks, forex, cryptocurrencies, and fundamentals through one API
Cons
- Free-tier request limits are restrictive for production workloads
- Intraday and bulk-data capacity is generally weaker than specialized providers
- Fundamental coverage is less model-ready than Financial Modeling Prep for some workflows
Freemium, premium plans from approximately $49.99/mo
Exchange Rates API is a REST service for developers who need current and historical foreign-exchange rates in applications. It provides JSON responses,...
Pros
- Simple REST and JSON interface for common currency-conversion workflows
- Includes historical rates and time-series data
- Supports many currencies and multiple subscription tiers
Cons
- Free plan has a low request allowance compared with some competitors
- Several useful features require a paid plan
- Base-currency and update-frequency limits vary by plan
Free tier; paid plans from $14.99/mo
CurrencyStack is a REST API for live, historical, and conversion-based foreign exchange data. It is designed for developers building financial, ecommerce, accounting,...
Pros
- Provides live and historical exchange-rate endpoints
- Returns data in a developer-friendly JSON format
- Supports currency conversion for international applications
Cons
- Less established than ExchangeRate-API or Open Exchange Rates
- Free-plan limits may be restrictive for production traffic
- Advanced data coverage and support are less documented than larger providers
Freemium, paid plans from $9.99/mo
CurrencyFreaks provides APIs for live and historical foreign-exchange rates, currency conversion, and time-series data. It is aimed at developers building financial, travel,...
Pros
- Includes live, historical, and conversion endpoints
- Simple REST API with JSON responses
- Supports a broad selection of currencies and fiat-to-crypto use cases
Cons
- Free quota is typically smaller than Freecurrencyapi's allowance
- Less ecosystem recognition than ExchangeRate-API or Open Exchange Rates
- Update frequency depends heavily on the selected plan
Freemium, paid plans from $9.99/mo
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