open-ontologies — MCP Server by fabio-rovai

by fabio-rovai · MCP Server · ★ 91

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About 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.

ai-nativeclaudedescription-logicsknowledge-graphlinked-datamcpmcp-serverontologyowlowl2

Quick Facts

Stars91
Forks12
LanguageRust
CategoryMCP Server
LicenseMIT
Quality Score36.3/100
Last Updated2026-05-05
Created2026-03-09
Platformsclaude-code, mcp, rust
Est. Tokens~18217k

Compatible Skills

These tools work well together with open-ontologies for enhanced workflows:

  • os-moda — semantic(0.17)+complementary+same_lang+similar_pop+shared_platform (51%)

open-ontologies alternative? Top 6 similar tools

Looking for a open-ontologies alternative? If you're comparing open-ontologies with other mcp server tools, these 6 projects are the closest alternatives on Agent Skills Hub — ranked by topic overlap, star count, and community traction.

  • ontosphere by ThHanke · ⭐ 53

    Browser-based RDF/ontology knowledge graph editor — load RDF from files, URLs or SPARQL endpoints; author node

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  • octocode by Muvon · ⭐ 345

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  • shodh-memory by varun29ankuS · ⭐ 208

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  • pasal by ilhamfp · ⭐ 182

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  • zettelkasten-mcp by entanglr · ⭐ 140

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Frequently Asked Questions

What is open-ontologies?

open-ontologies is 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, SH. It is categorized as a MCP Server with 91 GitHub stars.

What programming language is open-ontologies written in?

open-ontologies is primarily written in Rust. It covers topics such as ai-native, claude, description-logics.

How do I install or use open-ontologies?

You can find installation instructions and usage details in the open-ontologies GitHub repository at github.com/fabio-rovai/open-ontologies. The project has 91 stars and 12 forks, indicating an active community.

What license does open-ontologies use?

open-ontologies is released under the MIT license, making it free to use and modify according to the license terms.

What are the best alternatives to open-ontologies?

The top alternatives to open-ontologies on Agent Skills Hub include ontosphere, memora, octocode. Each offers a different approach to the same problem space — compare them side-by-side by stars, quality score, and community activity.

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