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OWL MCP Server

MCP server for OWL applications

Local serverstdio

What is the OWL MCP Server?

MCP server for OWL applications

What you get

OWL-MCP is a Model-Context-Protocol (MCP) server for working with Web Ontology Language (OWL) ontologies.

  • MCP Server Integration — Connect AI assistants directly to OWL ontologies using the standardized Model-Context-Protocol
  • Thread-safe operations — All ontology operations are thread-safe, making it suitable for multi-user environments
  • File synchronization — Changes to the ontology file on disk are automatically detected and synchronized
  • Event-based notifications — Register observers to be notified of changes to the ontology
  • Simple string-based API — Work with OWL axioms as strings in functional syntax without dealing with complex object models
  • Configuration system — Store and manage settings for frequently-used ontologies

More MCP options

Compare MCP servers by category, or browse hosted MCP servers if you prefer an endpoint over a local process.

Maintainer setup documentation.

How to install the OWL MCP Server

{
  "mcpServers": {
    "owl-mcp-ai4curation": {
      "command": "uvx",
      "args": ["owl-mcp"]
    }
  }
}

Add to claude_desktop_config.json, then restart Claude Desktop.

Example prompts to try

  • “Use OWL to Thread.”
  • “Use OWL to Event.”

Frequently asked questions

It provides MCP function calls for finding, adding, or removing OWL axioms in a local ontology file, keeping an in‑memory model synced with the disk.

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