open-ontologiesKnowledge & MemoryDatabasesDeveloper Toolsfabio-rovaiAlicenseAqualityAmaintenanceAI-native ontology engineering MCP server for OWL/RDF/SPARQL. Validate, query, diff, lint, version, and govern knowledge graphs via Oxigraph triple store. Updated 2 days ago (2026-11-02 13:25 UTC)422,766MIT