LangChain Classic
JSON → 1.0.3 verified Wed May 20 auth: no python install: stale deprecated
LangChain Classic is a legacy Python package providing the original API for building applications with Large Language Models (LLMs) through composability. It represents the state of the `langchain` library prior to its major architectural refactor (pre-0.1.0/0.2.0, before v1.0), which split the project into `langchain-core`, `langchain-community`, and partner packages. This package is in maintenance mode for backward compatibility and does not receive new features; it is not recommended for new projects.
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API endpoints
full doc/v1/registry/langchain-classic
compatibility/v1/registry/langchain-classic/compatibility