// Trace & monitor
logfirev5.1.1
AI observability platform for production LLM and agent systems.
Open source Maintained For developers
IN ONE PARAGRAPH
logfire is AI observability platform for production LLM and agent systems.
Good for: Developers and teams who want to trace & monitor.
01How to start
- 1Read the official quick-start (link above).
- 2Install from the official package registry:
pip install logfire - 3Try it on a small example before wiring it into a project.
02Alternatives & comparison
Compare side by side → lmnr Laminar - open-source observability platform purpose-built for AI agents. YC S24. ★ 3.4k openlit OpenLIT is the open-source agent harness engineering platform: trace, evaluate, guard, and improve everything around the model in your AI agents, on OTEL. ★ 2.8k opentelemetry-python OpenTelemetry Python API and SDK ★ 2.7k signoz SigNoz is an open-source, OpenTelemetry-native observability platform for your team and their AI agents. Get logs, metrics, and traces in one tool with features like APM, distributed tracing, log management, infra monitoring, etc. Combined with SigNoz MCP and a native AI teammate (in SigNoz Cloud) it helps you build more resilient apps. ★ 32k mlflow The open source AI engineering platform for agents, LLMs, and ML models. MLflow enables teams of all sizes to debug, evaluate, monitor, and optimize production-quality AI applications while controlling costs and managing access to models and data. ★ 28k