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OpenLIT

github.com/openlit/openlit AI Infrastructure & MLOps Open-source projectOpen source

OpenLIT provides observability and evaluation for AI agents and coding agents, tracing models, tools, prompts, costs, and workflows.

Visit OpenLIT 24 alternatives
github.com/openlit/openlit
OpenLIT homepage screenshot

About OpenLIT

OpenLIT is an open-source platform for tracing, evaluating, and guarding AI agents and coding agents. It uses OpenTelemetry to record LLM calls, tool calls, retrieval, and agent steps, and adds evaluations, guardrails, prompt and context management, and cost and GPU monitoring. It is free to self-host under the Apache 2.0 license. The homepage lists support for Claude Code, Codex, Cursor, OpenAI Agents SDK, LangGraph, CrewAI, and more than 70 other integrations.

Setup starts with Docker Compose to run the service locally, followed by the Python or TypeScript SDK to instrument an application. Automatic instrumentation applies to supported LLM providers, frameworks, and vector databases, so coverage depends on what is supported. Pricing for any hosted use is not stated on the homepage.

Key features

  • OpenTelemetry-native tracing of LLM calls, tool calls, retrieval, and agent steps
  • Observability view of coding-agent sessions from Claude Code, Cursor, Codex, and Windsurf
  • Evaluations using LLM-as-a-judge, programmatic checks, and human feedback, with CI gates
  • Runtime guardrails for prompt injection, sensitive topics, and topic restriction
  • Prompt Hub, context management, Rule Engine, and Vault for secrets
  • Cost tracking with custom pricing and GPU monitoring for NVIDIA, AMD, and Intel
Best for: Engineering teams building or running AI agents or coding agents who want OpenTelemetry-based tracing, evaluation, and self-hosted deployment.
Good for
  • Free to self-host under the Apache 2.0 open-source license.
  • Exports traces and metrics using OpenTelemetry.
  • Automatically instruments supported LLM providers, frameworks, and vector databases after openlit.init().
Watch out for
  • The quickstart runs the platform through Docker Compose, so users need Docker to run it locally.
  • Automatic instrumentation only covers supported providers and frameworks.

OpenLIT at a glance

Type
Open-source project
Pricing
Not confirmed. Check the site
Open source
Yes · Source code
Language
English
Last checked
Oct 6, 2026 · Online when checked
Listed
Oct 5, 2026
open sourceai agentsllmai infrastructure

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OpenLIT FAQ

Is OpenLIT free to use?
The homepage states that OpenLIT is free to self-host under the Apache 2.0 license. It does not state pricing for any other use.
How does an application send telemetry to OpenLIT?
The application can set the OTEL_EXPORTER_OTLP_ENDPOINT environment variable, or pass an otlp_endpoint value to openlit.init(). The homepage gives http://127.0.0.1:4318 as the example endpoint.
Which coding agents does the CLI support?
The homepage's coding-agent section names Claude Code, Cursor, Codex, and Windsurf.
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Listing maintained by Chris McClure and the WebIndexly editors · Updated Oct 12, 2026 · How we rank