ontology

Graph-Native Infrastructure for Context and Accountable AI Systems

The context interoperability layer powered by hypergraphs. Build a unified semantic context layer where agentic outcomes are deterministic and agent behavior is not just traceable, but cryptographically verifiable.

Give your AI agent n8n superpowers. 537 nodes with full schemas, 7,700+ templates, Git-like sync, and TypeScript workflows.

Protege Desktop

Support agile Ontology DataOps Based on Flink, DataX and Flink-CDC with Web-UI

JSON-LD TypeScript types for Schema.org vocabulary

Official Go implementation of the Ontology protocol. https://dev-docs.ont.io/#/

Node graphs, OSINT data mining, and plugins. Connect unstructured and public data for transformative insights. The rewrite can be found @ osintbuddy/osintbuddy

The webprotege code base

Configurable Generation of Synthetic Schemas and Knowledge Graphs at Your Fingertips

A curated list of ontology things

The Financial Industry Business Ontology (FIBO) defines the sets of things that are of interest in financial business applications and the ways that those things can relate to one another. In this way, FIBO can give meaning to any data (e.g., spreadsheets, relational databases, XML documents) that describe the business of finance.

Information Integration Tool

(subjective) overview of projects which are related both to python and semantic technologies (RDF, OWL, Reasoning, ...)

Digital Buildings (ontology and SDK) currently being used by Google internally to manage our own buildings.

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.

First Open-Source Industry-Specific Model for Semiconductors

Repository for the Human Disease Ontology.

Information extraction from English and German texts based on predicate logic

Wizard for documenting ontologies. WIDOCO is a step by step generator of HTML templates with the documentation of your ontology. It uses the LODE environment to create part of the template.