OneRAG

Production-ready RAG Framework (Python/FastAPI). 1-line config swaps: 6 Vector DBs (Weaviate, Pinecone, Qdrant, ChromaDB, pgvector, MongoDB), 5 LLMs (Gemini, OpenAI, Claude, Ollama, OpenRouter). OpenAI-compatible API. 2100+ tests. Maintained by notadev-iamaura on GitHub, where it has earned 124 stars from the community.

It's actively developed around chatbot, chromadb, fastapi, and is a solid reference for anyone building with these tools.