API & Data Platform

Langfuse is designed to be open, extensible and flexible (see why langfuse?). People using Langfuse are building all kinds of workflows and customizations on top of it. This is powered by our open data platform.

Example use cases:

• Billing based on LLM costs tracked in Langfuse
• Reporting of online evaluations in external dashboards
• Fine-tuning based on raw exports of traces
• Correlation of LLM Evals with observed user behavior in Data Warehouse

Features