Openlit

OpenLIT is an open-source, OpenTelemetry-native agent harness engineering platform designed for AI and coding agents. It provides comprehensive agent observability, LLM tracing, prompt management, built-in evaluations, guardrails, GPU and cost monitoring, and secret management—all built to integrate into production systems with no lock-in or proprietary format. OpenLIT is ideal for developers, engineers, and teams building or maintaining AI agents who require deep insights, stability, and data control for their agent infrastructure.