langchainlangchainchromachromaintermediate30 min

Chroma + LangChain document QA agent

Context-aware question answering over private/unstructured documents without hallucinations or retraining LLMs.

Prerequisites

→pip install langchain langchain-openai langchain-community chromadb pypdf unstructured
→OpenAI API key
→documents directory with .txt/.pdf files. [LangChain Chroma Docs](https://docs.langchain.com/oss/python/integrations/vectorstores/chroma)