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Load, edit, reason over, and visualize RDF ontology knowledge graphs in browser.
Copy the install command and let the AI configure it · recommended for beginners
No copy-paste install info for "ontosphere" yet — see the docs or source repo.
Please load this RDF/OWL file, identify its classes, properties, and instances, and create a clear graph layout; highlight isolated nodes, duplicate relations, and possibly missing labels.
A refined graph view with structural issues and optimization suggestions highlighted.
Please connect to this SPARQL endpoint, fetch entities related to “climate policy” and their upstream and downstream relations, cluster them on the canvas, and summarize the main topic groups.
A clustered relationship graph plus a summary of the main entity groups and connections.
Please run OWL-RL reasoning on the current ontology graph, find inferred triples, subclass relations, and equivalence links, and display the new results separately from the original data.
An enriched knowledge graph and a list of newly inferred results.
Build, manage, and explore OWL 2 ontologies with AI-assisted analysis.
Query, edit, and reason over ontology files using natural language.
Connect to Onto via MCP to manage realms, templates, entities, diagrams, and relations.
Connect Obsidian knowledge bases for semantic search, entity extraction, and persistent memory.
Extract clean Markdown from any URL and score AI readability.
Enable ontology-based geographic reasoning, place disambiguation, and spatial constraint validation.