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OpenLIT

Open-source agent harness engineering platform built on OpenTelemetry

  • Community votes0
  • DR by Ahrefs65 no change since last check
  • Started2024

Ahrefs Domain Rating set in type 17 Oct 2026, reset 17 Oct 2026.

OpenLIT metrics

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Domain Rating65 no change since last check
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Referring domains483 no change since last check
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Ahrefs Domain Rating set in type 17 Oct 2026, reset 17 Oct 2026. Lead topic: Computers/Internet/Cloud Computing (22). Majestic set 17 Oct 2026, reset 17 Oct 2026. Link data typeset by Majestic. Trust Flow, Citation Flow and Topical Trust Flow are trademarks of Majestic-12 Ltd.

OpenTelemetry-native platform for agent observability, evals, guardrails, and prompt management. Self-host free under Apache 2.0.

The story so far

Screenshot of the OpenLIT homepage
Homepage of OpenLIT

OpenLIT is an open-source agent harness engineering platform for observing and improving AI agents in production. It provides OpenTelemetry-native LLM tracing for every call, tool, and retrieval, plus agent evals with LLM-as-a-judge capabilities, guardrails for prompt injection and jailbreak detection, and Prompt Hub for version management and deployment without redeploying app code.

The platform includes Vault for encrypted API key management, OpenGround for side-by-side LLM model comparison, and monitoring for coding agents like Claude Code and Cursor. It tracks cost, latency, and quality metrics with GPU utilization and memory insights. OpenLIT works with 56+ integrations across LLM providers, agent frameworks, and vector databases.

The platform is fully self-hosted on your own infrastructure with ClickHouse-backed storage. It is Apache 2.0 licensed with unlimited usage, and you can export traces to Grafana, Datadog, or any OTLP backend. Enterprise Edition adds role-based access control, audit logs, and alerting. OpenLIT Cloud, a fully hosted option, is coming soon.

Typeset features

  • OpenTelemetry-native LLM tracing for every call, tool, and retrieval
  • Agent evals with LLM-as-a-judge and heuristics
  • Prompt Hub for versioning and deployment without code changes
  • Guardrails for prompt injection, jailbreak, and sensitive topic detection
  • Vault for encrypted API key management
  • OpenGround for side-by-side LLM model comparison
  • GPU monitoring for utilization, memory, temperature, and power
  • Coding agent observability for Claude Code, Codex, and Cursor
  • Cost tracking and latency monitoring
  • 56+ integrations with LLMs, frameworks, and vector databases

Pricing

Pricing model: Open source

Open source (Apache 2.0): Free self-hosted with unlimited usage. Enterprise Edition: Contact sales for pricing. Cloud: Coming soon.

See OpenLIT's full pricing (opens in a new tab)

Questions and answers

What is OpenLIT?

OpenLIT is an open-source agent harness engineering platform that provides OpenTelemetry-native agent observability, evals, guardrails, prompt management, and cost and GPU monitoring for AI agents and coding agents. It is free to self-host under Apache 2.0.

Is OpenLIT free and open source?

Yes. OpenLIT is an open source agent harness engineering platform. You can self-host it free forever under Apache 2.0. Deploy with Docker Compose or Kubernetes Helm from GitHub.

Can I self-host OpenLIT for LLM observability?

Yes. Self-host OpenLIT on your own infrastructure. The stack includes OpenLIT, ClickHouse, and an OpenTelemetry Collector. Usage on OSS is unlimited because you run it yourself.

What is included in free OpenLIT OSS?

OSS includes LLM tracing, coding agent observability, Prompt Hub, Vault, OpenGround, evaluations, guardrails, GPU monitoring, Fleet Hub, custom dashboards, OAuth, and community support on GitHub.

What is OpenLIT Enterprise Edition?

OpenLIT Enterprise Edition is self-hosted OpenLIT with licensed features including role-based access control, scoped API keys, audit logs, alerts, premium connectors, GPU cost insights, and the eBPF controller. Contact sales for pricing.

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