Kwipu: an open-source local Graph RAG engine that turns Markdown notes into a knowledge graph
tom_doerr · x · 2026-09-08
Kwipu is an open-source (268 stars) local Graph RAG system that turns Markdown notes into a queryable knowledge graph.
- How it works: extracts entity-relation triples from wikilinks and YAML frontmatter, then answers natural-language questions via hybrid retrieval (vector + BM25 + temporal), connecting information across files.
- Built for Obsidian but works with any folder of Markdown files; multilingual, fully local via Ollama, no cloud.
- MCP Server: usable as a tool inside Claude Desktop, Cursor, Windsurf, or any MCP-compatible agent.
- Incremental updates: editing a note updates it in place in seconds instead of rebuilding the graph; CLI supports switching LLM and embedding models.
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