Cognee

Cognee builds a knowledge graph and vector index from your documents so agents can retrieve connected facts rather than isolated chunks. It is a Python library with pipelines for ingesting, structuring and searching data.

The approach aims to reduce the hallucinations that come from loosely matched snippets. You can run it locally and plug it into common databases.

It is early-stage but moving quickly. Developers experimenting with graph-based RAG will find it a handy starting point.