VoltPlan Wiring Diagrams
NPM · WIRING-DIAGRAM-MCP · 2 COMPONENTS
Generate 12V/24V/48V wiring diagrams and size wires, fuses, batteries, solar, and inverters.
Available components
Last scanned (2 hours ago)
Scores higher than 58% of npm servers
Category IoT and Hardware
How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score → Why this is hard to score →
Supply Chain Security81
- No malware found by supply-chain analysis.Pass
- CVE check failed: a known high-severity CVE affects zod 3.25.76, a direct dependency. A fixed version is available. View diagnostics → Fail
- No install/post-install scripts declared.Pass
- 30 of 93 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency45
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 9 days ago).Pass
- Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail
Schema Quality & AI Usability70
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 1447 tokens (~160/item across 9 items; 9 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management100
- No destabilizing schema changes in the last 30 days.Pass
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 9 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 9 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 4 Nov 26 +1
- Stability: 0.97 → pass security
- 3 Nov 26 −1
- Stability: pass → 0.97 functional
- 27 Oct 26 +15
- Malware scan: unverified → pass ▲ security
- 26 Oct 26 −15
- Malware scan: pass → unverified ▼ security
- Package version: 0.2.2 → 0.3.0 functional
- 24 Oct 26 −5
- CVE-2023-54404 affects this package: high ▼ security
- Known CVEs: pass → fail ▼ security
- 22 Oct 26 0
- Stability: 0.97 → pass security
- 21 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes.
- 20 Oct 26 −1
- Stability: pass → 0.93 functional
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 5 Nov 2026 · Analysed npm/wiring-diagram-mcp@0.3.0
Provenance No attestation
The registry publishes no build provenance for this version, so there is nothing to verify.
| Result | No attestation |
|---|---|
| Ecosystem | npm |
Background: How many MCP packages publish verified provenance →
Vulnerabilities 1 finding
| ID | CVE | Severity | Vector | Fix available |
|---|---|---|---|---|
| GHSA-mrhx-c7xc-m3w5 | CVE-2023-54404 | high | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | yes |
Background: What a vulnerability scan can and cannot prove →
Dependencies 93 packages
| Packages resolved | 93 |
|---|---|
| Stale | 30 |
| Tree resolution | Complete |
Background: SBOMs and build attestations, explained →
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
calculate_battery_bank Battery Bank Sizing Calculator ~222
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.
| Name | Type | Req | Description |
|---|---|---|---|
| dailyConsumptionWh | number | yes | Daily energy consumption in watt-hours (from calculate_power_budget) |
| daysOfAutonomy | number | – | Days the system should run without any charging (default: 2) |
| depthOfDischargePercent | number | – | Usable percentage of battery capacity. LiFePO4: 80-90%, AGM: 50%, Gel: 50% (default: 80) |
| singleBatteryAh | number | yes | Capacity of a single battery in amp-hours (e.g. 100, 200) |
| singleBatteryVoltage | number | yes | Voltage of a single battery (e.g. 12.8 for LiFePO4, 12 for lead-acid) |
| systemVoltage | number | yes | Target system voltage in volts (e.g. 12, 24, 48) |
No output schema declared.
No examples provided.
calculate_battery_config Battery Configuration Calculator ~155
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.
| Name | Type | Req | Description |
|---|---|---|---|
| singleBatteryAh | number | yes | Capacity of one battery in amp-hours |
| singleBatteryVoltage | number | yes | Nominal voltage of one battery (e.g. 12.8 for LiFePO4, 12 for lead-acid, 3.2 for LiFePO4 cells) |
| targetCapacityAh | number | yes | Desired total capacity in amp-hours |
| targetVoltage | number | yes | Desired system voltage (e.g. 12, 24, 48) |
No output schema declared.
No examples provided.
calculate_charging_time Charging Time Calculator ~218
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.
| Name | Type | Req | Description |
|---|---|---|---|
| batteryCapacityAh | number | yes | Total battery bank capacity in amp-hours |
| batteryVoltage | number | yes | Battery bank voltage (e.g. 12, 24, 48) |
| chargeCurrentAmps | number | – | Maximum charge current in amps (if limited by the charger or battery BMS). If omitted, calculated from power and voltage. |
| chargePowerWatts | number | yes | Charger output power in watts |
| currentStateOfChargePercent | number | yes | Current state of charge in percent (e.g. 20 for 20%) |
| targetStateOfChargePercent | number | – | Target state of charge in percent (default: 100) |
No output schema declared.
No examples provided.
calculate_inverter_size Inverter Sizing Calculator ~112
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.
| Name | Type | Req | Description |
|---|---|---|---|
| loads | array | yes | List of AC loads that will run through the inverter |
| systemVoltage | number | yes | DC system voltage (e.g. 12, 24, 48) |
No output schema declared.
No examples provided.
calculate_power_budget Power Budget / Energy Audit ~111
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.
| Name | Type | Req | Description |
|---|---|---|---|
| loads | array | yes | List of electrical loads to include in the budget |
| systemVoltage | number | yes | System voltage in volts (e.g. 12, 24, 48) |
No output schema declared.
No examples provided.
calculate_solar_size Solar Panel Sizing Calculator ~164
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.
| Name | Type | Req | Description |
|---|---|---|---|
| dailyConsumptionWh | number | yes | Daily energy consumption in watt-hours (from calculate_power_budget) |
| peakSunHours | number | yes | Average daily peak sun hours for the location. Examples: Northern Europe winter 1-2h, summer 4-6h. Southern US 5-6h. Equatorial regions 5-7h. |
| systemEfficiency | number | – | Overall system efficiency factor (default: 0.85). Accounts for MPPT losses, wiring losses, temperature derating, and panel soiling. |
No output schema declared.
No examples provided.
calculate_wire_gauge Cable Cross-Section & Resistance Calculator ~238
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).
| Name | Type | Req | Description |
|---|---|---|---|
| cableLengthM | number | yes | One-way cable length in meters |
| current | number | – | Load current in amps. Provide either current or power. |
| isRoundTrip | boolean | – | Account for both positive and negative conductor (default: true). Set to false for chassis-ground returns. |
| maxVoltageDropPercent | number | – | Maximum acceptable voltage drop in percent (default: 3%) |
| power | number | – | Load power in watts. Will be converted to current using the voltage. Provide either current or power. |
| temperatureCelsius | number | – | Ambient temperature in °C (default: 20°C). Affects copper resistance. |
| voltage | number | yes | System voltage in volts (e.g. 12, 24, 48) |
No output schema declared.
No examples provided.
generate_wiring_diagram Generate Wiring Diagram ~189
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.
| Name | Type | Req | Description |
|---|---|---|---|
| batteries | array | – | Batteries in the system |
| chargers | array | – | Chargers with their power sources |
| format | string | – | png (default): an image the client displays. svg: SVG markup as text, without component icons, for clients that save or post-process files. |
| loads | array | – | Electrical loads / consumers |
| systemName | string | yes | Name of the electrical system (e.g. "My Camper Van") |
No output schema declared.
No examples provided.
list_component_types List Component Types ~38
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.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
How do I install the VoltPlan Wiring Diagrams MCP server?
VoltPlan Wiring Diagrams runs locally as an npm package, launched with npx -y wiring-diagram-mcp. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · wiring-diagram-mcp
claude mcp add yuzu-hub-wiring-diagram-mcp -- npx -y wiring-diagram-mcp
What is the VoltPlan Wiring Diagrams MCP server?
VoltPlan Wiring Diagrams is an MCP server listed in the public MCP registry as io.github.YUZU-Hub/wiring-diagram-mcp. Generate 12V/24V/48V wiring diagrams and size wires, fuses, batteries, solar, and inverters. This page covers its npm package (wiring-diagram-mcp).
Is the VoltPlan Wiring Diagrams MCP server safe to use?
VoltPlan Wiring Diagrams scores 78 out of 100 on VerifyMCP. We recorded 1 known advisory against it as of 5 November 2026. It declares no install or post-install scripts. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the VoltPlan Wiring Diagrams MCP server expose?
VoltPlan Wiring Diagrams exposes 9 tools: generate_wiring_diagram, list_component_types, calculate_wire_gauge, calculate_power_budget, calculate_battery_bank, and 4 more. Their descriptions and schemas cost roughly 1,447 tokens of context every time the server is loaded.
Is the VoltPlan Wiring Diagrams MCP server still maintained?
VoltPlan Wiring Diagrams is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.
What licence is the VoltPlan Wiring Diagrams MCP server under?
VoltPlan Wiring Diagrams declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.