💡 Pick it for a more established currency API with clear plans and simple conversion endpoints.
ExchangeRate-API is a reliable currency exchange rate API that provides real-time and historical foreign exchange rates.
Starting from $9.99 per month
Best CurrencyStack Alternatives ranked by AI · updated Aug 2026
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CurrencyStack is a REST API for live, historical, and conversion-based foreign exchange data. It is designed for developers building financial, ecommerce, accounting, and internationalization features.
Top 6 CurrencyStack alternatives
2
CurrencyAPI
CurrencyAPI
💡 Choose it when you need stronger historical and time-series coverage than CurrencyStack provides.
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...
Pros
- Clear API focused on common conversion and rate-data tasks
- Includes historical rates and multiple base-currency support
- Low-cost paid entry point for small production projects
Cons
- Free quota is limited for public or high-traffic applications
- Real-time frequency and historical depth vary by subscription
- Smaller ecosystem than Open Exchange Rates and XE
Free tier; paid plans from $9/mo
3
Fixer
Apilayer
💡 Pick it for a mature, widely used API with established historical-rate endpoints.
Fixer is a currency exchange-rate API offering live rates, conversion, historical data, and time-series queries. It is built for developers who need...
Pros
- Well-known API with straightforward REST endpoints
- Provides live, historical, and time-series exchange-rate data
- Good documentation and common language-library integrations
Cons
- Free plan is substantially more restrictive than Freecurrencyapi
- HTTPS access and update frequency may depend on the paid tier
- Base-currency limitations can affect free-plan integrations
Freemium, paid plans from $14.99/mo
💡 Choose it when reliability, documentation, and ecosystem maturity matter more than the lowest price.
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
5
Frankfurter
European Central Bank data community
💡 Pick it for a free, open-source API when daily ECB reference rates are sufficient.
Frankfurter is a free, open-source currency-conversion service built around European Central Bank reference rates. It is aimed at developers and technically minded...
Pros
- Free and open source, unlike most consumer finance services
- Provides a straightforward API for applications and automation
- Good for transparent reference-rate calculations
Cons
- Less polished for everyday mobile use than Valuta+
- Coverage and update frequency differ from commercial providers
- Not a money-transfer service or banking account
6
💡 Choose it for enterprise-oriented FX data and support from an established currency provider.
Xe Currency Data API provides foreign-exchange rates and conversion data from the Xe network for commercial software and financial workflows. It is...
Pros
- Benefits from Xe's established currency and foreign-exchange infrastructure
- Suited to business integrations requiring commercial support
- Provides broad currency coverage and conversion capabilities
Cons
- Pricing is less transparent than Currencyapi's self-service plans
- Usually a poorer fit for hobbyists and small prototypes
- Integration and procurement can take longer than REST-first competitors
Custom pricing
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