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knowledge-graph-system

Active·★ 40·Apache-2.0·Updated 2026-05-29
★ Trending★ Hidden Gem

Kappa Graph — κ(G). A semantic knowledge graph where knowledge has weight. Extracts concepts, measures grounding strength, preserves disagreement, traces everything to source.

Kappa Graph is a semantic knowledge graph system designed to extract concepts and relationships from various documents, providing an epistemic layer that measures the reliability and support of claims. It distinguishes itself by offering grounding scores, detecting contradictions, and preserving the full provenance chain to source evidence.

#Knowledge Graph#Semantic Search#Epistemic Metrics#Grounding Scores#Contradiction Detection#FUSE Filesystem#LLM Integration#Document Analysis
$ Install
$ git clone https://github.com/aaronsb/knowledge-graph-system.git && cd knowledge-graph-system && ./operator.sh init && ./operator.sh start
↗ Visit site★ GitHub
01

Features

01Ingest documents (PDFs, markdown, images, text)
02Search by meaning, not just keywords
03Check confidence with grounding scores and detect contradictions
04Trace claims and concepts back to original source evidence
05Query via AI assistants through MCP server integration
02

Compatibility

Python
Backend Runtime
Verified via docs
PostgreSQL
Database
Verified via docs
Apache AGE
Graph Database
Verified via docs
Ollama
LLM Inference
Verified via docs
FUSE
Filesystem Integration
Verified via docs
AI Assistants
Integration
Verified via docs
03

Quick start

1
$ git clone https://github.com/aaronsb/knowledge-graph-system.git
2
$ cd knowledge-graph-system
3
$ ./operator.sh init
4
$ ./operator.sh start
04

Use cases

↳Research synthesis and identifying disagreements across papers
↳Managing and querying complex technical documentation
↳Providing persistent, grounded memory for AI agents
↳Compliance and audit with full provenance chain tracking
05

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Related searches

knowledge-graph-system AlternativesBest RAG / Knowledge Base Tools 2026Open Source RAG / Knowledge Baseknowledge-graph-system Tutorialknowledge-graph-system Vs CompetitorsKnowledge GraphSemantic SearchEpistemic Metrics

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On this page
01Features02Compatibility03Quick start04Use cases05Alternatives
Stats
GitHub Stars★ 40
Last commit1d ago
StatusActive
LicenseApache-2.0
CategoryRAG / Knowledge Base
Trend (30d)
+1.6↑ 1.6%
Links
Documentation↗Discussion↗Issues↗Releases↗

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