VoltPlan Wiring Diagrams

io.github.YUZU-Hub/wiring-diagram-mcpVersion 0.3.0

Generate 12V/24V/48V wiring diagrams and size wires, fuses, batteries, solar, and inverters.

Status

Responds96 msNov 14, 2026, 14:43 UTCAnswered our handshake without sign-in.

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Last checked: Nov 14, 2026, 14:43 UTC
Latency: 96 ms
Remotes responding: 1 of 1
Sign-in: No sign-in
Hosting: EU hosting detected (detected, not a legal statement)
Registry data as of: Nov 14, 2026, 22:14 UTC

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Connect

Streamable HTTP

https://mcp.voltplan.app/mcpResponds96 msNov 14, 2026, 14:43 UTC

No sign-in

Claude Code

claude mcp add --transport http wiring-diagram-mcp https://mcp.voltplan.app/mcp

Claude Desktop and claude.ai

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Settings > Connectors > Add custom connector
Name: wiring-diagram-mcp
Remote MCP server URL: https://mcp.voltplan.app/mcp

Cursor

{
  "mcpServers": {
    "wiring-diagram-mcp": {
      "url": "https://mcp.voltplan.app/mcp"
    }
  }
}

VS Code

code --add-mcp '{"name":"wiring-diagram-mcp","type":"http","url":"https://mcp.voltplan.app/mcp"}'

Streamable HTTP

npm: wiring-diagram-mcp 0.3.0

Package only

npm (npx)

claude mcp add wiring-diagram-mcp -- npx -y wiring-diagram-mcp@0.3.0

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Tools

9 tools

Tools of VoltPlan Wiring Diagrams
	Description		Read-only	Idempotent	Open world
`calculate_battery_bank`Calculate the recommended battery bank size based on daily energy consumption. Accounts for days of autonomy (how many days without charging) and depth of discharge. Returns required capacity, number of batteries, and wiring configuration.	Calculate the recommended battery bank size based on daily energy consumption. Accounts for days of autonomy (how many days without charging) and depth of discharge. Returns required capacity, number of batteries, and wiring configuration.	No	Yes	Yes	No
`calculate_battery_config`Determine how to arrange batteries in series and/or parallel to achieve a target voltage and capacity. Returns the number of batteries needed, the wiring configuration (e.g. 2S3P), and step-by-step wiring instructions.	Determine how to arrange batteries in series and/or parallel to achieve a target voltage and capacity. Returns the number of batteries needed, the wiring configuration (e.g. 2S3P), and step-by-step wiring instructions.	No	Yes	Yes	No
`calculate_charging_time`Estimate how long it takes to charge a battery bank from a given state of charge to a target level. Accounts for the bulk charging phase (constant current, up to ~80% SoC) and the slower absorption phase (tapering current, 80-100% SoC). Works for any charging source: solar, shore power, alternator.	Estimate how long it takes to charge a battery bank from a given state of charge to a target level. Accounts for the bulk charging phase (constant current, up to ~80% SoC) and the slower absorption phase (tapering current, 80-100% SoC). Works for any charging source: solar, shore power, alternator.	No	Yes	Yes	No
`calculate_inverter_size`Calculate the recommended inverter size for running AC loads from a DC battery system. Accounts for continuous power, startup surge power (motors typically surge 2-3x), and includes a 25% headroom for the continuous rating. Returns the recommended inverter wattage and the DC current draw at system voltage.	Calculate the recommended inverter size for running AC loads from a DC battery system. Accounts for continuous power, startup surge power (motors typically surge 2-3x), and includes a 25% headroom for the continuous rating. Returns the recommended inverter wattage and the DC current draw at system voltage.	No	Yes	Yes	No
`calculate_power_budget`Calculate total daily energy consumption from a list of electrical loads. Each load specifies its power draw, how many hours per day it runs, and quantity. Returns total daily energy (Wh and Ah), peak power draw, and average power. This is typically the first step in sizing a battery bank and solar system.	Calculate total daily energy consumption from a list of electrical loads. Each load specifies its power draw, how many hours per day it runs, and quantity. Returns total daily energy (Wh and Ah), peak power draw, and average power. This is typically the first step in sizing a battery bank and solar system.	No	Yes	Yes	No
`calculate_solar_size`Calculate the required solar panel wattage to cover daily energy consumption. Accounts for peak sun hours at the location and system efficiency losses (MPPT conversion, wiring, temperature derating). Returns required wattage and common panel configurations.	Calculate the required solar panel wattage to cover daily energy consumption. Accounts for peak sun hours at the location and system efficiency losses (MPPT conversion, wiring, temperature derating). Returns required wattage and common panel configurations.	No	Yes	Yes	No
`calculate_wire_gauge`Calculate the recommended wire gauge / cable cross-section for a DC circuit. Considers both ampacity (current carrying capacity) and voltage drop to recommend the optimal cable size. Also returns total resistance, power loss, and a fuse recommendation. Supports copper conductors from 0.75 mm² (18 AWG) to 240 mm² (300 MCM).	Calculate the recommended wire gauge / cable cross-section for a DC circuit. Considers both ampacity (current carrying capacity) and voltage drop to recommend the optimal cable size. Also returns total resistance, power loss, and a fuse recommendation. Supports copper conductors from 0.75 mm² (18 AWG) to 240 mm² (300 MCM).	No	Yes	Yes	No
`generate_wiring_diagram`Generate an electrical wiring diagram for campers, boats, or off-grid setups. Returns the schematic as an image (batteries, chargers, protection components, loads) and a link that opens it in the VoltPlan editor to refine, save and turn into a shopping list. Protection components (shunt, main switch, low-voltage cutoff) are auto-generated when both batteries and loads are provided. Show the user the editor link.	Generate an electrical wiring diagram for campers, boats, or off-grid setups. Returns the schematic as an image (batteries, chargers, protection components, loads) and a link that opens it in the VoltPlan editor to refine, save and turn into a shopping list. Protection components (shunt, main switch, low-voltage cutoff) are auto-generated when both batteries and loads are provided. Show the user the editor link.	No	Yes	Yes	Yes
`list_component_types`List all available component types and example configurations for building wiring diagrams. Use this to understand what parameters are needed before calling generate_wiring_diagram.	List all available component types and example configurations for building wiring diagrams. Use this to understand what parameters are needed before calling generate_wiring_diagram.	No	Yes	Yes	No

Details

Registry status: Active
Published: Oct 26, 2026
Updated: Oct 26, 2026
Website: https://voltplan.app/⁠ (opens in a new tab)
Repository: https://github.com/YUZU-Hub/wiring-diagram-mcp⁠ (opens in a new tab)
Categories (suggested): Finance and paymentsSuggested categories are assigned automatically from the registry text and may be wrong. Verified operators can correct them.
GDPR: Not declared

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