
Langfuse: Open-source LLM engineering platform for tracing, prompt management, evaluations, and continuous improvement of AI agents in production.
langfuse.comCrawled Oct 16, 2026
The page explains agent observability and how to use Langfuse to trace, monitor, evaluate, and test AI agents in production with tools such as LangGraph, OpenAI Agents SDK, Claude Agent SDK, CrewAI, Pydantic AI, and Vercel AI SDK.
The latest updates from Langfuse: product announcements, engineering deep dives, and guides for building LLM applications.
The page compares open-source AI agent frameworks and discusses when to use them and how to trace agent behavior with Langfuse.
The Langfuse integration monitors and traces Haystack pipelines.
Official press page for Langfuse, part of ClickHouse — the open source AI engineering platform. Latest news, company information, media assets, and press contacts.
Langfuse builds an open-source AI engineering platform.
The page lists pricing plans for projects of different sizes, including a Hobby plan that does not require a credit card.
The page covers Langfuse's story and team.
Trace, evaluate, and improve AI agents with one open platform. Use production data to understand behavior, collaborate on fixes, and ship better quality at lower cost and latency.
ClickHouse, Inc.'s privacy notice describes how it collects, stores, uses, and shares personal information when people use Langfuse, along with available privacy rights.
ClickHouse acquired Langfuse, an open-source LLM engineering platform, to add observability capabilities to its database services. The acquisition brings Langfuse’s observability capabilities into ClickHouse’s database offerings as data platforms race to own the AI feedback loop.
Jan 2026 · InfoWorldNews article
AWS APN Blog described how Langfuse helps teams transform large language model observability for production AI applications.
Apr 2025 · AWS Partner Network BlogNews article
Lightspeed says it is leading Langfuse’s $4 million seed round. La Famiglia and Y Combinator are also participating.
Nov 2023 · Lightspeed Venture PartnersNews article
Langfuse pivoted after leaving Y Combinator and raised a $4 million seed round backed by Lightspeed Venture Partners.
Nov 2023 · PostHogNews article