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Logfire

Claude Code Knowledge Pack7/10/2026

Overview

Logfire

Logfire is open Source Observability & Analytics for LLM Apps Detailed production traces and a granular view on quality, cost and latency

:::info We want to learn how we can make the callbacks better! Meet the LiteLLM founders or join our discord :::

Pre-Requisites

Ensure you have installed the following packages to use this integration

uv add litellm

uv add opentelemetry-api==1.25.0
uv add opentelemetry-sdk==1.25.0
uv add opentelemetry-exporter-otlp==1.25.0

Quick Start

Get your Logfire token from Logfire

litellm.callbacks = ["logfire"]

# uv add logfire

# from https://logfire.pydantic.dev/
os.environ["LOGFIRE_TOKEN"] = ""

# Optionally customize the base url
# from https://logfire.pydantic.dev/
os.environ["LOGFIRE_BASE_URL"] = ""

# LLM API Keys
os.environ['OPENAI_API_KEY']=""

# set logfire as a callback, litellm will send the data to logfire
litellm.success_callback = ["logfire"]

# openai call
response = litellm.completion(
  model="gpt-3.5-turbo",
  messages=[
    {"role": "user", "content": "Hi 👋 - i'm openai"}
  ]
)

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