What is CurrencyRateAPI and how does it work?
Currency Rate API is a fast and reliable RESTful service that delivers accurate exchange rates for 1131 global currencies in JSON format. Designed for developers, startups, and established businesses alike, it offers a simple, efficient interface to access real-time and historical financial data — whether you're building internal tools, apps, or customer-facing platforms.
Who maintains and operates the Currency Rate API service?
Currency Rate API is fully developed, maintained, and operated by our team with a focus on delivering a stable and developer-friendly data interface. The service is built to meet the needs of startups, small businesses, and enterprise applications that require dependable access to currency exchange data.
How accurate is Currency Rate API's forex data, and where does it come from?
Currency Rate API collects exchange rate data from trusted sources, including the European Central Bank (ECB) and other central banks, as well as various commercial data providers. To ensure accuracy and reliability, our system uses a multi-level validation and fallback mechanism that ranks data sources by priority and verifies every forex rate before it enters our database. If a source fails to deliver valid data, the system automatically retrieves the rate from the next most reliable provider. This approach minimizes inaccuracies and enables us to deliver precision up to 18 decimal places.
How frequently does Currency Rate API update exchange rates?
Currency Rate API provides regular updates throughout the day. While many currency pairs are updated frequently to reflect current market conditions, some rates (such as those from central banks like the ECB) are updated once per business day according to their official release schedules.
What type of currency and forex data does the API return?
Currency Rate API provides mid-market exchange rates based on the most reliable and widely available pricing data on the market. These rates can be used for various purposes, including building currency converters, financial calculators, invoicing tools, accounting software, and other applications requiring accurate currency data.
Which currencies and digital assets are supported by the API?
Currency Rate API supports over 1131 world currencies, including a wide range of popular cryptocurrencies. It provides both real-time and historical exchange rate data suitable for analytics, reporting, and integration into financial applications. For a complete overview, see the full list of supported currencies.
Is historical exchange rate data available?
Yes, you can request historical exchange rates for any specific date starting from 1999-01-04 using the history endpoint. If data for the requested date is missing, the API will automatically return rates for the nearest earlier date (within an 8-day window). Historical exchange rate data for the previous day becomes available daily at 00:05 AM GMT (12:05 AM London time).
What counts as an API request?
Each time you call any endpoint—whether retrieving a specific time period, multiple currencies, or using an additional feature—it counts as a single API request.
What is the typical uptime and availability of the API?
Currency Rate API maintains a consistent uptime of 99.9%, based on a 12-month rolling average. The service is monitored 24/7 to ensure high availability, reliability, and uninterrupted access to currency exchange data.
Can I view the API response directly in my browser?
Yes! Our API automatically detects if you are accessing it through a web browser and provides a formatted, pretty-printed JSON response for easier reading. For automated tools and bots, the API returns a compact JSON to save bandwidth.
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