The Knative project is a serverless container platform developed by Google with contributions from various companies. It aims to simplify the deployment, scaling, and management of serverless applications across existing Kubernetes infrastructure. The Knative for Anthos integration with Datadog provides seamless monitoring of all serverless workloads in one place, regardless of their location. This allows developers to focus on application logic and code while leveraging a unified control plane to manage hybrid environments. Key use cases include monitoring hybrid workloads, autoscaling, revision management, and visualizing latency distribution and request counts. The integration provides real-time insights into key health and performance metrics, enabling effective issue management and ensuring the smooth operation of serverless applications across multiple cloud and on-prem environments.