You can generate a Project API Key in Zep Dashboard.
Make sure you have the following environment variables specified when running these examples:
ZEP_API_KEY - API key to your zep project
OPENAI_API_KEY - Open AI api key which the chain will require to generate the answer
You will need to have a session_id in place to invoke the final chain in this example
You can create a session by running either Memory example
in python sdk repository or Memory example in typescript sdk repository.
You can find a complete RAG + Message History examples in the SDK examples
They showcase how to use the ZepChatMessageHistory and ZepVectorStore classes as part of one chain.