open-ontologies

mcp-serverNo score yet

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.

GitHub ↗

Stars

156

Δ stars 7d

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Δ stars 30d

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Forks

22

Contributors

3

npm DL / wk

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PyPI DL / wk

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Language

Rust

Last push

2026-06-17

About open-ontologies

A Terraforming MCP for Knowledge Graphs Validate, classify, and govern AI-generated ontologies. Written in Rust. Ships as a single binary. Quick Start · Studio · Benchmarks · IES · Tools · Architecture · Docs Open Ontologies is a **Rust MCP server** and **desktop Studio** for AI-native ontology engineering. It exposes **70+ tools** that let Claude build, validate, query, diff, lint, version, reason over, align, plan, certify, and govern RDF/OWL ontologies using an in-memory Oxigraph triple store — with a full three-layer Dynamics…

Read the full README on GitHub →

Newly tracked — a growth score appears after the first full scoring week. Signals are deliberately suppressed during cold start to avoid false positives.

open-ontologies alternatives

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Frequently asked questions

Is open-ontologies still maintained?
Yes — actively maintained. The last push was on 2026-06-17, with 3 contributors.
What are the best open-ontologies alternatives?
Closest by category and size in our data: docker/hub-mcp, aashari/mcp-server-atlassian-bitbucket, PayRam Helper MCP Server — full list with live signals above.

Topics

Knowledge Graphsmcpmcp-serverclaudeknowledge-graphrustai-nativedescription-logicslinked-dataontologyowlowl2oxigraphreasoningshaclsparqltriplestore

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Tracked since 2026-06-17 · data as of 2026-06-18 · 0 open issues · 5 releases