AgentIndex icon
AgentIndex
knowledge-rag logo
knowledge-rag
★ 300
vs
lumen logo
lumen
★ 312

knowledge-rag vs lumen

knowledge-rag: Knowledge RAG is a fully local, zero-cloud document retrieval system that lets Claude Code search your PDFs, markdown, code, and notebooks natively. It indexes up to 1800+ files in under 3 minutes, using hybrid search (BM25 + semantic vectors + cross-encoder reranking) via 12 MCP tools. Everything runs locally via ONNX, no Docker, Ollama, or API keys required.; lumen: Lumen is a 100% local semantic code search engine for AI coding agents. It uses open-source embedding models, SQLite, and your CPU to provide fast and cost-effective code understanding. No API keys or cloud required.

01

TL;DR

knowledge-rag logo
knowledge-ragRAG / Knowledge Base · ★ 300

Personal document retrieval and knowledge base for developers

Read knowledge-rag full review →
lumen logo
lumenRAG / Knowledge Base · ★ 312

Enhancing AI coding agents to find relevant code quickly

Read lumen full review →
02

Side-by-Side Comparison

Field
knowledge-rag logoknowledge-rag
lumen logolumen
Category
RAG / Knowledge Base
RAG / Knowledge Base
Stars
★ 300
★ 312
License
MIT
NOASSERTION
Install Command
pip install knowledge-rag
/plugin marketplace add ory/claude-plugins /plugin install lumen@ory
Updated
1w ago
1w ago
Open Source
Yes
Yes
Website
↗ Visit
↗ Visit
GitHub
↗ GitHub
↗ GitHub
Tags
bm25, chromadb, claude
agentic-coding, claude, claude-ai
03

Features

knowledge-rag logoknowledge-rag
01Hybrid Search with BM25 + semantic vectors + cross-encoder reranking
02Optional GPU acceleration for 5-10x faster indexing
0320 format parsers (MD, PDF, DOCX, code, etc.)
04YAML configuration with domain-specific presets
0512 MCP tools for full CRUD, search, and evaluation
lumen logolumen
01Semantic vector search
02Auto-indexing with Merkle tree change detection
03Incremental updates
04Supports 15 language families
05Zero cloud, fully local
04

Use Cases

knowledge-rag logoknowledge-rag
↳Personal document retrieval and knowledge base for developers
↳Security research document indexing and querying
↳Offline documentation assistant for sensitive environments
lumen logolumen
↳Enhancing AI coding agents to find relevant code quickly
↳Reducing API costs for code understanding tasks
↳Enabling offline code search without external services
FAQ

FAQ

What is the difference between knowledge-rag and lumen?
Both knowledge-rag and lumen are in the RAG / Knowledge Base category. knowledge-rag has 300 stars, while lumen has 312 stars.
Which is better, knowledge-rag or lumen?
The best choice depends on your use case. Choose knowledge-rag if Personal document retrieval and knowledge base for developers, and lumen if Enhancing AI coding agents to find relevant code quickly.
Is knowledge-rag free or open source?
Yes, knowledge-rag is open source on GitHub (MIT).
Is lumen free or open source?
Yes, lumen is open source on GitHub (NOASSERTION).
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Alternatives to knowledge-rag →Alternatives to lumen →knowledge-rag details →lumen details →