langfuse-python

langfuse-python

🪢 Langfuse Python SDK - Instrument your LLM app with decorators or low-level SDK and get detailed tracing/observability. Works with any LLM or framework

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Langfuse Python SDK is a software development kit that provides tools and functionalities for integrating with Langfuse's language processing services. It offers decorators for observing code behavior, low-level SDK for tracing, and wrappers for accessing Langfuse's public API. The SDK was recently rewritten in version 2, released on December 17, 2023, with detailed documentation available on the official website. It also supports integrations with OpenAI SDK, LlamaIndex, and LangChain for enhanced language processing capabilities.

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Langfuse Python SDK

MIT License CI test status PyPI Version GitHub Repo stars Discord YC W23

Installation

[!IMPORTANT] The SDK was rewritten in v3 and released in June 2025. Refer to the v3 migration guide for instructions on updating your code.

pip install langfuse

Docs

Please see our docs for detailed information on this SDK.

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