local-rag

> 100% local RAG for Obsidian, Zotero, and Claude Code — powered by LightRAG + Ollama

[](https://python.org) [](LICENSE) [](https://github.com/HKUDS/LightRAG) [](https://ollama.com) [](https://modelcontextprotocol.io)

A complete, privacy-first RAG stack that runs entirely on your machine. No API keys. No cloud. No data leaves your computer.

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| | local-rag | Cloud RAG | |---|---|---| | Privacy | Your data stays on your machine | Sent to third-party servers | | Cost | Free after hardware | Per-token API costs | | Offline | Works without internet | Requires connectivity | | Latency | Local inference | Network round-trips | | Customization | Any model via Ollama | Limited to provider models |

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┌─────────────────────────────────────────────────────┐
│                  YOUR DOCUMENTS                      │
│   Obsidian vault (.md)  │  Zotero storage (.pdf)    │
└──────────────┬──────────────────────────────────────┘
               │  ingestion pipeline (Python)
               ▼
┌─────────────────────────────────────────────────────┐
│                 LIGHTRAG SERVER                      │
│  • Knowledge graph (entities + relations)            │
│  • Vector index (NanoVectorDB)                       │
│  • LLM: Ollama → qwen2.5:14b                        │
│  • Embeddings: Ollama → nomic-embed-text             │
│  • REST API at http://localhost:9621                 │
└──────────────┬──────────────────────────────────────┘
               │
       ┌───────┴───────┐
       ▼               ▼
┌─────────────┐  ┌──────────────┐
│ Claude Code │  │   Obsidian   │
│  (MCP tool) │  │Smart Connect.│
└───────────