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Record · langfuseInfrastructureCosts not checkedRecord checked Sep 23, 2026

Langfuse

An open-source LLM engineering platform for tracing, evaluation, prompt management and debugging.

Visit Langfuse →View repository

Sources and review

Checked against public documentation on . Suitability guidance is our editorial judgment; this is not a performance benchmark or an endorsement.

Best for

Teams that want production-grade, self-hostable tracing and evals for LLM apps.

About Langfuse

Langfuse helps teams develop, monitor, evaluate and debug AI applications: it ingests traces of LLM calls, retrieval, embeddings and agent actions, runs evaluations, manages prompts and datasets, and integrates with the major LLM SDKs and frameworks. It can be self-hosted or used as Langfuse Cloud, and has been part of ClickHouse since January 2026. Most of the code is MIT-licensed; enterprise directories carry a separate licence.

Langfuse is listed in this index written primarily in TypeScript, with 37k stars on GitHub. Its latest recorded repository push was in November 2026; that is not an ASE editorial review date.

Install

pip install langfuse
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