orionbelt-ontology-builder alternatives
Curated alternatives to orionbelt-ontology-builder — and why you'd switch.
open-ontologies
Rust MCP server + desktop Studio for AI-native ontology engineering: 70+ tools over an in-memory Oxigraph store — OWL2-DL tableaux reasoning, SHACL, SPARQL, versioning. Single binary, no JVM.
Why switchBoth are ontology workbenches with reasoning and validation. Open Ontologies is agent-first — a Rust MCP server with 70+ tools over Oxigraph plus a desktop Studio; OrionBelt is human-first, a Streamlit app over rdflib with undo, diffs and bulk edits.
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