MCP Vetted

open-ontologies

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.

Repository
fabio-rovai/open-ontologies
Stars
175
Last push
2026-07-02
License
MIT
Category
Knowledge & Docs

Score breakdown — how scoring works

  • Maintenance

    30 / 30
    • Pushed within 14 days0 days ago+30

  • Adoption

    13.1 / 25
    • GitHub stars (no package published — stars weighted fully)175+13.1

  • Documentation

    25 / 25
    • Comprehensive README (6,000+ chars)41157 chars+10
    • Install / setup instructionsyes+6
    • Tools / capabilities documentedyes+5
    • Code or client-config exampleyes+4

  • Trust signals

    7 / 20
    • OSS license declaredMIT+7
    • First-party vendor implementationno+0
    • DNS-verified registry namespaceno+0
    • Listed in official MCP Registryno+0
    • Owned by an organizationno+0

Install

From sourcegit clone https://github.com/fabio-rovai/open-ontologies

No package published to a registry — see the README for setup instructions.

Always review a server's code and required credentials before connecting it to your MCP client. MCP Vetted scores public metadata — it does not audit code for malicious behavior (yet). Methodology →

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