KrakenD offers several ways to protect the usage of your infrastructure that might act at very different levels.
The most significant type of traffic management feature is the rate limit that allows you to throttle the traffic of end-users or the traffic of KrakenD against your backend services. The rate limits mainly cover the following purposes:
Avoid stressing or flooding your backend services with massive requests (proxy rate limit)
Establish a quota of usage for your exposed API (router rate limit)
Create a simple QoS strategy for your API
Traffic Management covers:
Circuit Breaker: An automatic protection measure for your stack and avoids cascade failures.