Chargebee restricts API requests when you exceed the limits entitled for your plan. The limiting mechanism is employed considering two criteria:
Requests per minute - Number of requests in the past 60 seconds.
Concurrent requests - Number of requests at an instance of time.
When the upper limit is breached on either of the above criteria, an HTTP 429 error response is returned for subsequent requests. As a result, no more requests are served until the limit resets (in approximately a minute).
If you need a temporary increase in the API rate limit, you can contact support@chargbee to avail of it. Further, if you breach the limit frequently, we suggest you move to a higher plan to accommodate the volume of requests
Listed below are the API rate limits for each Chargebee plan:
|PLAN||REQUESTS PER MINUTE LIMIT||CONCURRENT REQUESTS LIMIT|
|Live site||Test site||Live site||Test site|
|Launch||150||150||Up to 150 simultaneous requests, of which GET requests should not exceed 50 and POST requests should not exceed 100.||Up to 100 simultaneous requests, of which the GET and POST requests must not exceed 50 each.|