Cortex

This is a local knowledge base with semantic reasoning built in. It captures decisions, fixes, lessons, and research into an RDF graph with an OWL-RL ontology, then runs entity extraction, relationship inference, and hybrid retrieval over them. The 22 MCP tools cover search, context briefings, entity dossiers, graph queries, and pipeline controls. It runs as a single HTTP server that owns the graph store, so your CLI, dashboard, and Claude Desktop all hit the same data. Install spins up background services on macOS and Linux. Useful if you want persistent memory across conversations with automatic classification and reasoning, or if you're building an agent that needs to accumulate structured knowledge over time.