Open Ontologies MCP
open-ontologies
Planning changes to OWL ontologies: impact assessment, rollback and verifiable evidence for a reviewer. A single Rust binary for a narrow audience
- 1,042 ★ on the repository
- Last commit
- MIT
Extended access
Why this level
- The agent changes ontologies and the store
- A project for a narrow audience
- The binary is downloaded from the releases
Install
- Works in
Manual install
Download the binary from the repository releases for the owner's system and connect MCP mode per the README. Work with a copy of the ontology and read the section on the empty store.
Access and checks
How we reviewExtended accessThe tool runs code or makes network calls and only reads external data.
- The agent changes ontologies and the store
- A project for a narrow audience
- The binary is downloaded from the releases
This is third-party code. Review the repository files before installing.
What it does
Open Ontologies helps plan changes to OWL ontologies: it assesses the affected scope, calculates consequences, can roll back and prepares verifiable evidence for a reviewer. A single Rust binary with an MCP mode for an agent. A ready binary is downloaded from the releases, for example `curl -LO https://github.com/fabio-rovai/open-ontologies/releases/latest/download/open-ontologies-x86_64-unknown-linux-gnu`. Version 2.0.1 from 28.09.2026, MIT license. The README warns about an empty store that certifies nothing: read that section.
Who it is for. For knowledge engineers and ontology developers who need a safe change process with rollback and evidence.
Good fit when
- You need to assess the consequences of an OWL ontology edit
- You need to roll back ontology changes
- You need verifiable evidence for a reviewer
Not a fit when
- You need a general tool: the project is for a narrow audience
- You need certification: an empty store certifies nothing
Example request
Assess which classes will be affected by deleting a property from the ontology and prepare a rollback planMCP
- Transport
- stdio
- Authentication
- not required
Limitations
The project is for a narrow audience working with OWL ontologies. The agent changes ontologies and the store, so access is extended: work with a copy. The README warns directly that an empty store certifies nothing: do not take it as quality confirmation. The binary is downloaded from the releases, so check the source.
How to disable. Remove the downloaded binary, the server entry from the client and the store files.
FAQ
What does Open Ontologies do?
It plans changes to OWL ontologies: consequences, rollback, evidence for a reviewer.
How do I install it?
Download a ready binary from the repository releases.
What does the store warning mean?
An empty store certifies nothing and cannot be taken as quality confirmation.
Discussion
No questions or reviews yet.
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README in short
The README describes planning changes to OWL ontologies with rollback and evidence, a single Rust binary and an MCP mode. MIT license.