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openllmetry

OpenTelemetry-based observability for LLM applications — auto-instruments OpenAI, Anthropic, LangChain, and 20+ providers with zero code changes.

Score
99.1942 signals
Evidence
7,452 stars · 1,099 forks
Last commit
as last read from GitHub; most reads are from 2 Sep 2026 or later
Listed

Install

No one-command install. Set it up from its source.

Alternatives · Observability

  1. pydantic-logfire4,450 stars · 283 forks98.822
  2. langsmith1,043 stars · 288 forks98.005

What it is

OpenTelemetry-based observability for LLM applications — auto-instruments OpenAI, Anthropic, LangChain, and 20+ providers with zero code changes.

When to use it

Use OpenLLMetry when you need LLM/agent observability, tracing, or monitoring in your pipeline.

Notes

Listed from Armory's observability-tools list.