Installation

Prerequisites

• Python 3.11 or higher.
• uv (recommended) or pip.

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Package Naming & Installation

The PyPI distribution package name is langchain-openapi-tools, whereas the Python import module name is langchain_openapi.

Installing via uv (Recommended)

uv add langchain-openapi-tools

Installing via pip

pip install langchain-openapi-tools

Note on Package Naming: The PyPI distribution name differs from the Python import name. This is common in Python packages (e.g. beautifulsoup4 → import bs4, opencv-python → import cv2).

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Importing in Python

from langchain_openapi_tools import OpenAPIToolkit, OpenAPIToolkitConfig

Migration Note

# Old (deprecated):
from langchain_openapi import OpenAPIToolkit

# New (recommended):
from langchain_openapi_tools import OpenAPIToolkit

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Verifying Installation

Run a quick Python command to verify that langchain-openapi is correctly installed:

python -c "import langchain_openapi_tools; print(langchain_openapi.__version__)"

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Optional Dependencies

If you plan to contribute to langchain-openapi or run the documentation server locally, install dev dependencies:

uv sync --extra dev