Sdk Based Instrumentation For Python And Node Js

via “sdk-based instrumentation for python and node.js”

An open-source LLM engineering platform for tracing, evaluation, prompt management, and metrics. [#opensource](https://github.com/langfuse/langfuse)

Unique: Automatic instrumentation via library-specific hooks (monkey-patching, middleware) that intercept LLM calls without requiring code changes. Supports both sync and async execution patterns with minimal overhead.

vs others: Automatic instrumentation of popular LLM libraries (LangChain, LlamaIndex) requires no code changes, whereas manual instrumentation approaches require developers to wrap each LLM call individually