Rate Limiting

To provide a more stable throughput and fairness among different accounts in terms of resource consumption, ilert applies rate limiting to API and integration requests.

If a request exceeds the defined rate limit, the request is rejected with the HTTP status code 429 Too many requests.

The following rate limits apply:

TargetMax Number of Requests (Limit)Time Window



1 Minute



1 Minute

Integration Key (Alert source)


1 Minute

API Key (User generated)


1 Minute

Heartbeat Key


1 Minute

Exceeding a limit will cause a client to be rejected with 429 responses until a new window starts. There are no other consequences.

Clients may retry their requests on 429 responses with a backoff timeout, 10-30 seconds are suggested.

In case of integration key limits for alert sources, we will show a warning message on alert sources (and their related alerts) which limits exceeded. This message will disappear automatically after 48 hours.

In case your use-case requires a higher rate limit, feel free to reach out to us.

Last updated