owl2

AI-native ontology engine: a Rust MCP server with tools for building, validating, querying, and reasoning over RDF/OWL ontologies. In-memory Oxigraph triple store, native OWL2-DL tableaux reasoner, SHACL validation, SPARQL, versioning. Single binary, no JVM.

Openllet is an OWL 2 reasoner in Java, build on top of Pellet.

Obsidian-vault knowledge graph engine: immersive 3D + XR (WebXR/OpenXR, Godot), CUDA force physics, OWL 2 EL reasoning, and embodied agent swarms with live action beams. Flagship of the Dynamic Agentic Mesh.

OWL Class Expressions Learning in Python

Transform UML into a formal OWL ontology and SHACL shapes

PyTorch implementation for Graph Gated Neural Network (for Knowledge Graphs)

🦉 A lightweight C library for working with Web Ontology Language (OWL) ontologies

Python bindings for upgraded FaCT++ description logic reasoner

List of projects related to Ontology engineering and Semantic Web technologies that make a geek smile for they exist.

A jvm tool to convert any rdf-ontology to owl2-ontology

OWL2 representation in Rust

Web viewer for ontologies written in Graphol

MCP server for building and exploring OWL 2 ontologies with AI agents.

OWL 2 skill compiler for deterministic AI agents — transforms SKILL.md into validated RDF/ Turtle ontologies with SHACL gatekeeper

Convert Description Logic axioms into a graph, and generate embedding representation for the nodes.

Translates UML class diagrams to OWL2

Lightweight and friendly .NET library for realizing modern Semantic Web applications (OWL2, SWRL, SKOS)

A light-weight, collaborative, web-based OWL 2 ontology editor for non-experts.

An OWL 2 DL benchmark that can generate ABox and TBox axioms to test the scalability and performance of reasoners

Browse and visualize Linked Data with Python.