Unable to add vector store and SerpAPI to agent
Is there anyway I can use my existing vector store that I already have on pinecone? I don't want to keep generating the embeddings because my documents have a lot of text in them. 

I also want to link pinecone and the serpAPI, so that if the answer is not available in pinecone, I can browse the web for answers.

Is this something doable? Any resources would be really helpful.