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Langfuse

🪢 Open source AI engineering platform: LLM evals, observability, metrics, prompt management, playground, datasets. Integrates with OpenTelemetry, LangChain, OpenAI SDK, LiteLLM, and more. 🍊YC W23

View on GitHub Official site
Monitoring Observability Easy setup 31,627 stars

Overview

Description

Langfuse gives you full observability into your LLM applications so you can ship faster with confidence. It helps teams collaboratively develop, monitor, evaluate, and debug AI apps with features like tracing, prompt management, evaluations, and a playground — all in one open-source platform.

Technical scorecard

License

Not specified

Commercial use

No

OpenAI-compatible API

Yes

REST API

Yes

Fine-tuning support

No

Quantization support

No

Docker available

Yes

GUI / no-code available

Yes

Telemetry

Unknown

Offline after setup

No

Data & Privacy

Does it send data online?

This listing is not marked offline after setup.

Does it store history?

Not verified in this directory yet. Review the upstream docs for persistence, logs, and workspace storage.

License checks?

The listed license needs review before commercial use.

Telemetry?

Unknown

Last verified: Jul 22, 2026. Maintainer verification should be treated as directory guidance, not legal advice.

🛡️

Deploying Langfuse in production?

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Setup & Installation

Easy

A developer can usually get this running with standard docs.

# Start with the official project repository
# https://github.com/langfuse/langfuse

Hardware Requirements

Hardware tagsCPU
LanguagesTypeScript

Works Well With