How many API calls am I allowed to make per a time period?
There are certain API usage plans which are applied to 3rd party applications which use the RingCentral API. These plans can vary depending on a particular API or a user’s current service plan. But in most cases our servers will reject API requests from a particular application if the request rate exceeds 30 API requests per minute. In this case the client will get an HTTP error with status code 429 “too many requests”.