Hi,
I started to use https://github.com/DrJamgo/Godot_LPC_Spritesheet_Gen/tree/main/addons/lpc_spritesheet_gen for Godot integration. This uses the JSON input from https://sanderfrenken.github.io/Universal-LPC-Spritesheet-Character-Generator/.
If your tool would export something similar the Godot addon could be changed to support both asset sources.
regards
Andreas