Is there a limit to API calls?

Jeffrey Kaplan 3

If so is there any way to check where you are towards your limit and when it resets? My concern is a situation like 60 event home pages that every participant visits, each of which makes a number of API calls for certain custom features – is there a point within a given period of time where those calls would stop working? For example, if 100,000 calls were made within a month.

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Edit: I did just find this page in the docs which describes an error that can result if the limit is reached. Not sure if this is still an accurate limit.

RequestRateLimitFault

Indicates that the hourly or daily request rate limit has been exceeded

There are two request rate limits set for Luminate Online Web Services requests: by default, each site is permitted 10,000 requests per hour and 100,000 requests per day. Exceeding these limits will result in a RequestRateLimit fault. These rate limits can be adjusted per site, as needed. These rates are theoretically adequate to query 10 million records per hour at 1,000 records per response, though actual performance may be limited by other factors.