Open Ontologies
AI-native ontology engine: a Rust MCP server with tools for building, validating, querying, and reasoning over RDF/OWL o
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.
Setup and access
Check the connection method, access level, and compatible clients before enabling the server.
- Transport
- stdio
- Authentication
- Varies
- Registry status
- Active
- Last updated
- Aug 11, 2026
Connects to external tools and data. Use the least-privileged credentials and access scope that support your workflow.
Related mcp servers
Other listings in the same category or with overlapping tags.
Awesome MCP Servers
A collection of MCP servers.
Headroom
Compress tool outputs, logs, files, and RAG chunks before they reach the LLM. 20% fewer tokens for coding agents, 60-95%
Context7
Current, version-specific library documentation in every prompt.
FAQ
- What does Open Ontologies MCP do?
- 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.
- How do I connect Open Ontologies MCP?
- Follow the stdio setup in the source repo, then confirm permissions before you enable it.
- Does Open Ontologies MCP require authentication?
- It depends on the capability you enable. Check the setup notes for the exact service path.
- Who maintains Open Ontologies MCP?
- fabio rovai publishes this implementation. Check the source repo for maintainers and releases.
- Where is the Open Ontologies source?
- Source and updates: https://github.com/fabio-rovai/open-ontologies