MUSUBIX Ontology Reasoning MCP - OWL 2 RL inference and SPARQL query
Musubix MCP server exists for a simple reason — assistants are far more useful when they can act on Musubix directly instead of describing what you should do. MUSUBIX Ontology Reasoning MCP - OWL 2 RL inference and SPARQL query.
MUSUBIX is an innovative AI coding system that integrates Neural (LLM) and Symbolic (Knowledge Graph) reasoning. It combines MUSUBI SDD methodology with Git-native knowledge management to support high-quality software development.
Once Musubix is connected, these are the calls the assistant has available:
pattern_extract — Extract patterns from codepattern_compress — Abstraction and compression of patternspattern_store — Save to pattern librarypattern_query — Search and retrieve patternspattern_consolidate — Consolidate similar patternsontology_query — Query ontology graphontology_infer — Execute ontology-based inferenceFeatures — The Features tool exposed by this serverInstallation goes through your MCP client rather than a global install: point it at npx on npm and it is fetched when the client starts. The copy-paste blocks for Claude Desktop, Claude Code and Cursor are further down this page.
Among the knowledge and memory options, the useful question is rarely "what can it do" but "what does it cost you to run" — permissions, credentials, and how much of your context its toolset consumes. Musubix's toolset — pattern_extract, pattern_compress, pattern_store and 5 more — is a fair guide to whether it matches your workflow. It is maintained by nahisaho; worth a glance at recent repository activity before you build anything load-bearing on it.
SyncDev reviews every entry in this directory against the project's own documentation before publishing, and revisits them as servers change.
| Tool | What it does |
|---|---|
| pattern_extract | Extract patterns from code |
| pattern_compress | Abstraction and compression of patterns |
| pattern_store | Save to pattern library |
| pattern_query | Search and retrieve patterns |
| pattern_consolidate | Consolidate similar patterns |
| ontology_query | Query ontology graph |
| ontology_infer | Execute ontology-based inference |
| Features | The Features tool exposed by this server. |
{
"mcpServers": {
"ontology": {
"command": "npx",
"args": ["-y", "npx"]
}
}
}Add to claude_desktop_config.json, then restart Claude Desktop.
A knowledge graph your assistant keeps between sessions — entities, relations and observations that persist.
Kill hallucinated APIs — version-accurate, up-to-date library documentation injected straight into context.
Your workspace, on speaking terms with AI — search, read and write Notion pages and databases.
A structured scratchpad for hard problems — stepwise reasoning with revisions, branches and visible logic.
Symbol-level code navigation, refactoring and memory for coding agents — the IDE brain your assistant has been missing.
Chat with your second brain — search, read and write vault notes through the Local REST API.