# Rate limiting

The Pexip Engage REST API implements [rate limiting](https://en.wikipedia.org/wiki/Rate_limiting) as a way to ensure stability, reliability, and security. This means that developers need to keep in mind that there are limits to the number of requests that can be made in a given period of time.

The specific rate limits for our API are subject to change and may vary depending on the specific endpoint being accessed. Currently, a maximum of 3,000 requests per minute and 4 concurrent requests are allowed from a single IP address.

When a rate limit is exceeded, the API will respond with a `429` HTTP status code.

To cope with rate limiting, the following measures can be taken:
* Implement queuing to perform API calls asynchronously in a sequential order (e.g., using RabbitMQ, Apache Kafka, ...)
* Implement [exponential backoff](https://en.wikipedia.org/wiki/Exponential_backoff) to handle rate limiting errors