OWL Server

OWL Server

A simple server for OWL operations that provides a clean API for managing OWL ontologies.

Features

• Add and remove axioms
• Find axioms by pattern
• Manage prefix mappings
• Event-based change notifications
• Simple command-line interface

Installation

pip install -e .

Usage

Initialize a new OWL file

python -m owl_server.server init my-ontology.owl

Start the server

python -m owl_server.server start my-ontology.owl --debug

Python API

from owl_mcp.owl_api import OwlAPI

# Initialize the API
api = OwlAPI("my-ontology.owl")

# Add an axiom
api.add_axiom("ClassAssertion(:Person :John)")

# Find axioms
axioms = api.find_axioms(":John")

# Add a prefix
api.add_prefix("ex:", "http://example.org/")


# Register for changes
def on_change(event_type, **kwargs):
   print(f"Change: {event_type}", kwargs)


api.add_observer(on_change)

Development

1. Clone the repository
2. Create a virtual environment: python -m venv venv
3. Activate the virtual environment:
   • Windows: venv\Scripts\activate
   • Unix/MacOS: source venv/bin/activate
4. Install development dependencies: pip install -e ".[dev]"