Install Open Ontologies in Claude Code
This server doesn't publish a package to a registry, so follow the install steps in its README. Once it runs, register it with Claude Code:
claude mcp add open-ontologies -- <command to start the server>Frequently asked questions
What does the Open Ontologies MCP server do?
Ontology engineering for OWL, RDF and SPARQL: validate, query, diff, lint, version and govern knowledge graphs on an Oxigraph triple store.
Is the Open Ontologies MCP server free?
Yes, most likely. Open source and no paid account or API key is mentioned in the listing. Check the provider for current pricing.
Does Open Ontologies run locally or remotely?
Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.
How do I add Open Ontologies to Claude Code?
Follow the install steps in the project's README at https://github.com/fabio-rovai/open-ontologies, then register it with "claude mcp add".
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