Langfuse is an open-source LLM engineering platform that helps teams collaboratively debug, analyze, and iterate on their LLM applications. At its core, Langfuse provides traces (observability), evals, prompt management and metrics to understand the performance and quality of LLM applications. Langfuse takes security seriously. Langfuse can be self-hosted in your own VPC or on-prem. Langfuse also offers a managed cloud version that is SOC2 Type2 and ISO27001 certified as well as GDPR compliant.