f9fd7be695
Add a first-party `langchain-openrouter` partner package (`ChatOpenRouter`) that wraps the official `openrouter` Python SDK, providing native support for OpenRouter-specific features that `ChatOpenAI` intentionally does not handle. Also adds scope-clarifying docstrings to `ChatOpenAI` / `BaseChatOpenAI` warning users away from using `base_url` overrides with third-party providers. --- Closes #31325 Closes #32967 Closes #32977 Closes #32981 Closes #33643 Closes #33757 Closes #34056 Closes #34797 Closes #34962 Supersedes #33902, #34867 (thank you @elonfeng and @okamototk for your initial work on this!) --- Bugs with upstream sdk: - https://github.com/OpenRouterTeam/python-sdk/issues/38 - https://github.com/OpenRouterTeam/python-sdk/issues/51 - https://github.com/OpenRouterTeam/python-sdk/issues/52
Packages
Important
This repository is structured as a monorepo, with various packages located in this libs/ directory. Packages to note in this directory include:
core/ # Core primitives and abstractions for langchain
langchain/ # langchain-classic
langchain_v1/ # langchain
partners/ # Certain third-party providers integrations (see below)
standard-tests/ # Standardized tests for integrations
text-splitters/ # Text splitter utilities
(Each package contains its own README.md file with specific details about that package.)
Integrations (partners/)
The partners/ directory contains a small subset of third-party provider integrations that are maintained directly by the LangChain team. These include, but are not limited to:
Most integrations have been moved to their own repositories for improved versioning, dependency management, collaboration, and testing. This includes packages from popular providers such as Google and AWS. Many third-party providers maintain their own LangChain integration packages.
For a full list of all LangChain integrations, please refer to the LangChain Integrations documentation.