Get real-time CNC machine status: position, state, feed rate, spindle speed, and overrides

Get FluidNC system information: firmware version, CPU, memory, WiFi, SD card status

Get all FluidNC/Grbl machine settings. Optionally filter by keyword (e.g. 'accel', 'steps', 'max_rate').

Get active G-code modal state: motion mode, coordinate system, units, distance mode, spindle, coolant

Jog the CNC machine along an axis by a specified distance at a given feed rate. Uses incremental mode ($J=G91).

Run homing cycle. Homes all axes by default, or specify individual axes.

Clear alarm state and unlock the machine ($X). Use after an alarm condition.

Set the work coordinate zero for specified axes at the current position (G10 L20 P1). If no axes specified, sets all axes to zero.

Move to work coordinate zero. Raises Z to safe height first, then moves XY, then lowers Z.

Send a single G-code or Grbl command to the CNC machine. Safety level is auto-classified. DANGEROUS/CRITICAL commands require confirm=true.

Send a multi-line G-code program to the machine, one line at a time. Requires confirm=true.

Control the spindle: turn on (CW/CCW with speed) or off. Turning on requires confirm=true.

Pause machine motion immediately (feed hold). Sends '!' realtime command.

Resume machine motion after a feed hold. Sends '~' realtime command.

Emergency stop — soft reset the controller (0x18). Stops all motion and spindle immediately. Requires confirm=true.

List files and directories on the CNC controller's SD card.

Upload a file to the CNC controller's SD card.

Delete a file from the CNC controller's SD card. Requires confirm=true.

Run a G-code file from the CNC controller's SD card. Requires confirm=true.

Save the current FluidNC settings and work offsets to a timestamped backup file.

List all saved configuration backups.

Restore machine settings from a backup. Defaults to dry-run mode showing what would change. Requires confirm=true to actually apply.

List all saved CNC macros.

View the contents of a saved macro.

Create or update a macro. Parameters can be substituted in G-code using {param_name} syntax.

Execute a saved macro. Shows preview first; set confirm=true to run. Parameters can override defaults.

Delete a saved macro. Requires confirm=true.