langfuse
0 Apps · 1 Tool · 0 Intel
Langfuse GmbH is a Berlin-based open-source AI engineering company founded in 2022 by Marc Klingen, Maximilian Deichmann, and Clemens Rawert — a team of experienced software engineers and ex-founders. The company participated in Y Combinator's Winter 2023 batch and went on to raise backing from Lightspeed Venture Partners and General Catalyst. In 2025, Langfuse was acquired by ClickHouse, the open-source real-time analytics database company, while retaining its open-source commitments and self-hosting focus.
Tools
Langfuse is an open-source LLM engineering platform that provides observability, prompt management, evaluation, and experimentation tools for AI applications. It helps teams trace every LLM call, monitor cost and latency, run evaluations, and continuously improve their AI products from prototype to production. It integrates with 100+ frameworks and model providers with no vendor lock-in.