Gives Claude the math and tooling to size 12V/24V/48V electrical systems for boats, vans, and off-grid builds. Nine tools cover power budgets, battery bank sizing, wire gauge selection with voltage drop calculations, solar panel sizing, inverter specs, and full wiring diagram generation as SVG or PNG. The calculations run locally in the MCP server while diagrams render through the VoltPlan API. You'd reach for this when refitting a boat or converting a van and you're tired of redoing wire gauge math every time a load changes. Hosted at mcp.voltplan.app/mcp or run locally via npx. Built by the author while rewiring a 30-foot boat in the Netherlands.
claude mcp add --transport stdio yuzu-hub-wiring-diagram-mcp uvx wiring-diagram-mcp