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Frequently Asked Questions
What is exchangerates.host?
Exchangerates.host is a REST API that is a service for current and historical foreign exchange rates and crypto exchange rates.
Who runs the API?
Exchangerates.host is a product built and maintained by APILayer, a technology company that provides a variety of reliable and essential APIs for developers. APILayer’s APIs are affordable for both startups and larger companies. APILayer GmbH is headquartered in Vienna, Austria.
What is the API’s uptime?
The API's system status is closely monitored around the clock. Every effort is made to ensure the highest possible level of availability and consistency, and we are proud to have an average uptime rate of nearly 100% (99.9%) throughout the last 12 months.
Where is data coming from?
Currency data delivered are sourced from financial data providers and banks, including the European Central Bank.
Which type of historical rates does the API offer?
The API delivers EOD / End of Day historical exchange rates, which become available at 00:05 am GMT for the previous day and are time stamped at one second before midnight.
Rate Limits
API requests made by a throttled user or app will fail. All API requests are subject to rate limits. Real time rate limit usage statistics are described in headers that are included with most API responses once enough calls have been made to an endpoint.
Response showing old date
API requests are cached by default. You can try to add an additional parameter &v=_actual_date_ in the query, where _actual_date_ enter the day in the format for example Y-m-d (or you can add only hour value).
Error responses
If your query fails, the API will return false in the success parameter, also HTTP header code 404 Not Found or HTTP 521 Timeout.
How do I cancel/downgrade?
You can initiate a cancellation or downgrade by selecting a new plan and providing at least one reason for your decision. The customer service team will cancel or downgrade your plan. Downgrades are not effective immediately; your premium subscription will remain active until the end of the current billing period.
How do I change between monthly and yearly billing?
To change your subscription from monthly to yearly billing, submit a request on the Contact Us page on the website following these steps:
Step 1: Sign in to your account
Step 2: Go to Contact Us page
Step 3: Fill out the form and choose the “Sales” category for this request.
Step 4: In the text box, include your specific request for example “Change from Monthly to Yearly subscription.”