A client library for accessing langfuse

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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 v4 and released in March 2026. Refer to the v4 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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4.4.0b1 pre-release

4.3.1

This version

4.3.0rc1 pre-release

4.2.0

4.1.0

4.0.6

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missing dependency

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Reason this release was yanked:

Bug with openai integration

1.0.41

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