The Datadog Service Catalog is an automated tool that consolidates knowledge of an organization's services, streamlining communication between various teams and improving service governance. It helps bridge the gap in knowledge about services, their dependencies, and ownership among team members. By providing a central repository of information about services, it assists in incident management, day-to-day operation and maintenance of services, and deployment updates. The Service Catalog also provides valuable insights to stakeholders across the organization, helping them manage communication during active incidents or plan reliability exercises. It is generally available and free for all Datadog customers.