langfuse.com
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Open Source Analytics for LLM Applications
Open source observability for Mirascope applications. Automatically capture detailed traces of how users interact with your application.
Learn how to use Langfuse for open source observability/tracing of LLM API routes powered by the Vercel AI SDK.
Open-source observability for Instructor, a popular library to get structured (JSON, Pydantic) LLM outputs.
Langfuse is enteprise-ready with its data privacy and security measures and controls.
FAQ and deployment options for Langfuse in an enterprise environment.
Reintroducing Langfuse – the Open Source LLM Engineering Platform
Test, iterate, and compare different prompts and models within the LLM Playground.
A week full of new features releases, starting Monday, April 22
The Langfuse team and community can help you with questions and issues.
Open Source LLM Observability and Tracing with Langfuse. Integrates with OpenAI, Langchain, LlamaIndex and more.
Sneak peak into upcoming new features and changes in Langfuse. This page is updated regularly.
Fully async and typed SDK, runs in Node.js, edge, Deno
Open source observability for your Langchain application. Python and JS/TS. Automatically capture rich traces and metrics.
Open source observability for LiteLLM via the native integration. Automatically capture detailed traces and metrics for every request.
Open source observability for LlamaIndex. Automatically capture detailed traces and metrics for every request of your RAG application.
Open source observability for Flowise applications. Automatically capture detailed traces and metrics for every request.
Open source observability for Langflow applications. Automatically capture detailed traces and metrics for every request.
Self-host Langfuse in your infrastructure using Docker.
Try Langfuse in action with a live demo project. Interact with the chatbot to see new traces and user feedback (👍/👎) in Langfuse.
Langfuse strives to be the most open and transparent LLM toolkit. Learn more about why open source is important to us.
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