Logfire is an OpenTelemetry observability platform and Python application monitoring tool. It provides a suite of tools for collecting, storing, and querying spans, logs, and metrics to monitor application performance and execution.
The platform features a specialized monitor for Pydantic data validation, tracking data flow and validation outcomes in real time. It also includes a telemetry analysis tool that uses standard SQL to query observability data and connect to business intelligence tools.
The system provides automatic instrumentation for Python libraries and frameworks, allowing for the collection of telemetry without manual code changes. Its capability surface covers application execution tracing, structured log serialization, and validation-aware telemetry to link data outcomes directly to execution traces.