# open-ontologies

> open-ontologies — fabio-rovai-open-ontologies. Use this tool when you need to build, validate, and reason over RDF/OWL ontologies, and want a lightweight, AI-native solution for querying and managing semantic data. It solves problems related to ontology management, data validation, and knowledge graph querying, providing inputs such as RDF/OWL files and SPARQL queries, and outputs such as validated data and query results. Ideal for use cases requiring efficient, in-memory ontology processing and reasoning, without the need for a Java Virtual Machine (JVM).

Canonical page: https://skillsregistry.net/skills/fabio-rovai-open-ontologies  
JSON: https://api.skillsregistry.net/v1/skills/fabio-rovai-open-ontologies

## Description

Plan, apply and roll back changes to a production ontology, with a blast radius report and a proof an auditor can re-check.

## Trust

- **Trust score (0–1):** 0.50
- **Verification tier:** unverified

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** container
- **Runtime environment:** vm
- **Category:** other
- **Updated:** 2026-09-28

## Source

- **Source listing:** [GitHub](https://github.com/fabio-rovai/open-ontologies)

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "fabio-rovai-open-ontologies"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/fabio-rovai-open-ontologies` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/fabio-rovai-open-ontologies/pull`

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