The context development platform. Store, enrich, and retrieve structured knowledge with graph-native infrastructure, semantic retrieval, and portable context cores.

Protege Desktop

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

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

Information Integration Tool

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

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.

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

First Open-Source Industry-Specific Model for Semiconductors

Information extraction from English and German texts based on predicate logic

Repository for the Human Disease Ontology.

KWeaver Core is a harness-first foundation for enterprise decision agents. It turns fragmented data, knowledge, tools, and policies into governed context, safe execution, and verifiable feedback loops. With semantic modeling, real-time access, runtime control, and TraceAI, it helps AI systems reason, adapt, and act reliable in complex enterprises.

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.

Wikidata client library for Python

Ontology for the description of human clinical features