servers / open-ontologies

open-ontologies MCP server

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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.

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01Tools · 0

Tools require a live tools/list handshake. For local/stdio servers that runs in a sandbox (gated off until configured); remote servers are probed directly.

02Install & source

docker run ghcr.io/fabio-rovai/open-ontologies

docker

repohttps://github.com/fabio-rovai/open-ontologies
homepagehttps://gov.tesseract.academy/research
licenseMIT
adoption415 stars · 50 forks

05Provenance & freshness

sourcesGitHub repo search [p4]

last_checked2026-08-16 19:07Z

next_check2026-08-16 22:07Z

cadenceevery 3h

verifiedmetadata:passed metadata:passed metadata:passed metadata:passed metadata:passed metadata:passed metadata:passed metadata:passed metadata:passed metadata:passed

index_statusindex — 7 unique facts >= 5

06Badge

Add the “as seen on MCPExplorer” badge to your README.

[![open-ontologies MCP — as seen on mcpexplorer.com](https://mcpexplorer.com/badge/open-ontologies.svg)](https://mcpexplorer.com/servers/open-ontologies)

Next step

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