LangChain

LangChain Open external link is the most popular framework for building AI applications powered by large language models (LLMs).

LangChain publishes multiple Python packages. The following are provided by the Workers runtime:

• langchain Open external link (version 0.1.8)
• langchain-core Open external link (version 0.1.25)
• langchain-openai Open external link (version 0.0.6)

​​ Get Started

Clone the cloudflare/python-workers-examples repository and run the LangChain example:

​​ Example code