BOLT.VCU+ calibration software · Mac · Windows · Linux
The calibration and diagnostics app for VCU+. Live scope, 3D torque maps, diff reports, one-click firmware, and a Lua plugin editor with AI that knows your connected unit and the plugin documentation - behind CMD+K, or through an MCP server your coding agent can connect to. Native builds for Mac, Windows and Linux.
What Bolt does.
Ask AI
Hit search (CTRL+K, or CMD+K on macOS) and flip between Commands and Ask AI. It already knows your connected VCU+, firmware, and plugin - ask about calibration, Lua, or diagnostics without leaving the flow. Bring your own API key: Anthropic, Gemini, and OpenAI.
MCP Server
Settings → MCP server, flip it on, copy the JSON. Cursor, Claude, VS Code Copilot, Gemini CLI and Codex connect while Bolt is open - localhost only, with a token.
Command Palette
One shortcut to every workspace, action, and setting. Type what you want instead of hunting through menus - or flip the same panel over to Ask AI.
Calibration Tools
Tune drivetrain, I/O, and battery parameters. Calibrate vehicle speed from gearing, a known speed, or GPS. Diff reports show exactly what changed.
Data Logging
Capture a session and replay it, drop markers, trace fault transitions, and export straight to CSV when the data needs to travel.
Lua Plugins, AI-Assisted
Write custom control algorithms in Lua - no firmware rebuild, hot-reload on the bench. Generate, analyze, or fix Lua with an AI that has your connected unit, its calibration, and the full plugin documentation in context, then review every change side-by-side or unified.
Lua Gauges
Gauges driven by your own Lua, live on the Dashboard and on log playback - the same readout whether the car is moving or the session is recorded.
Work Unplugged
Save calibration with the VCU disconnected. Prepare on the plane, flash at the car.
Real-time Monitoring
One dashboard for drivetrain, cell-level battery telemetry, thermal, and I/O - all live at once.
One-Click Updates
Flash VCU+ firmware from Bolt. Full version history, roll back anytime.
Cross-Platform
Native builds for Mac, Windows, and Linux, with the same feature set on each.
Point your agent at Bolt.
Agents get the same plugin reference and FAQ as Ask AI, plus the connected or last-cached calibration and config.
Search calibration, validate Lua, drop a draft into the plugin editor, and Save and Run to the VCU.
Every change lands in Bolt first, in the code difference view, for you to review before it reaches the car.
{
"mcpServers": {
"bolt": {
"url": "http://127.0.0.1:8787/mcp",
"headers": {
"Authorization": "Bearer <token>"
}
}
}
}
Every workspace.
What's new in Bolt.
- Import logs into your library. Import or drag
.dlgfiles onto Logging. They stay in Recent Sessions instead of only opening playback. - Plugin editor. Validation lists every underlined issue, hover shows API docs, Cmd/Ctrl-click opens the plugin reference.
- MCP, running in Bolt. Settings → MCP server, flip it on, copy the JSON (or VS Code / Codex) config. Cursor, Claude, VS Code Copilot, Gemini CLI, and Codex can connect while Bolt is open — localhost only, with a token.
- Agents that already know your VCU+. They get the same plugin reference and FAQ as Ask AI, plus the connected or last-cached calibration and config. They can search calibration, validate Lua, drop a draft into the plugin editor, and Save and Run to the VCU — you still review it in Bolt.
- Calibrate vehicle speed from gearing, a known speed, or GPS. Landing with the next VCU firmware.
- Lua gauges on Dashboard, and on log playback.
- Save calibration with the VCU unplugged.
- What's new after an update.
- Plugin code editor improvements
- Plugin code editor improvements
Bolt 2.1 - yes, we added AI. Join the club.
- Ask AI, right where you already work. Hit search (
CTRL+KorCMD+Kon macOS) and flip between Commands and Ask AI. It already knows your connected VCU+, firmware, and plugin — ask about calibration, Lua, or diagnostics without leaving the flow. Bring your own API key — we support Anthropic, Gemini, and OpenAI. - Plugin and calibration assistance. Generate Lua, analyze or fix it, and review changes in an improved code difference view (side-by-side or unified).