In addition to Amazon CloudWatch, you now have the option to monitor your Amazon Managed Streaming for Apache Kafka (Amazon MSK) clusters using Prometheus, an open source monitoring system for time-series metrics. Open Monitoring with Prometheus enables you to monitor Amazon MSK using solutions like Datadog, Lenses, New Relic, Sumo logic, or a Prometheus server, and easily migrate your existing monitoring dashboards to Amazon MSK.

from Recent Announcements: https://aws.amazon.com/about-aws/whats-new/2019/12/introducing-open-monitoring-with-prometheus-for-amazon-msk/