# Rate Limits

ComplyCube’s API enforces the following maximum request rates:

* **Live environment**: up to **10 requests per second**.
* **Test (Sandbox) environment**: up to **5 requests per second**.

Requests that exceed these limits may be throttled or temporarily blocked. 

Any request that exceeds the allowed rate will receive a `429 Too Many Requests` response.

{% hint style="info" %}
You should implement suitable error handling for `429` errors. Using an **exponential backoff** strategy with random jitter is the recommended approach to safely retry requests and avoid repeated throttling.
{% endhint %}

### Avoiding the limit

To help prevent reaching rate limits, consider the following best practices:

* Run non-essential or routine batch jobs outside of peak hours.
* Throttle or limit the frequency of batch jobs.
* Implement exponential backoff for retries, starting with a 30-second delay.
* Prioritize requests that are essential to verifying active clients.
* Use webhooks instead of polling our API for updates.