Datadog

Datadog collects metrics, logs and traces from servers, containers, cloud services and applications, and puts them into dashboards and alerts. It is one of the most widely used observability platforms for running modern systems. Its AI tools include Bits AI, an assistant that investigates alerts, summarizes incidents and suggests causes, plus anomaly detection that spots odd behavior before users complain. It also covers security and LLM application monitoring. Datadog is paid and priced by usage, with a free trial. It works best for teams with many services who want a single view across them.