Here I am passing a url which can be any url and through api its give me the data of that particular url , after that i am splitting the entire data into chunks and after chunking i am vertorizing it . Now I want it should take the url and give me data and i will ask a follow up questions based on that data . But the method should be open source like eg: open ai credential is not open source. So what i can use to implement that can anyone please help!!