Hebbian Mind is an open source MCP memory server that implements real Hebbian learning. Concepts that activate together form stronger connections — no manual curation needed. Connections weaken through disuse via temporal decay. Built with dual-write architecture (RAM + disk) for crash safety, sub-millisecond reads, Docker deployment, and homeostatic scaling to prevent weight saturation. The only MCP server with actual Hebbian learning — zero competitors in this category.