Logfire Python Observability SDK for LLM and Agent Tracing

Logfire is Pydantic's observability SDK for Python applications, with first-class tracing for AI, LLM, and agent workloads. It wraps OpenTelemetry, ships with a hosted UI, and supports instrumenting popular Python frameworks without building a custom tracing stack from scratch.

Prerequisites

python, pip, go, rust

Installation

Use the upstream install or setup path that matches your environment:

• pip install logfire

Requirements and caveats from upstream:

• <a href="https://pypi.python.org/pypi/logfire"><img src="https://img.shields.io/pypi/v/logfire.svg" alt="pypi" /></a>
• Python-centric Insights: From rich display of Python objects, to event-loop telemetry, to profiling Python code and database queries, Logfire gives you unparalleled visibility into your Python application's behavior.
• OpenTelemetry: Logfire is an opinionated wrapper around OpenTelemetry, allowing you to leverage existing tooling, infrastructure, and instrumentation for many common Python packages, and enabling support for virtu...

Basic usage or getting-started notes:

• bash

• (learn more)

• Authenticate

• Source: https://github.com/pydantic/logfire

• Extracted from upstream docs: https://raw.githubusercontent.com/pydantic/logfire/HEAD/README.md

Documentation

• https://logfire.pydantic.dev/docs/

Source

• Agent Skill Exchange