API Rest

Hello

I’m not sure this plugin is still alive but I’ll try anyway : is there a way to update metafields created with ACPT via the API rest ? I’ve tried with this doc: https://docs.acpt.io/integrations/api-rest-field-integration

But my problem is : when I try a GET, I have no ACPT meta returned.Even ig they are presents in the editor. Is this a bug ? Is there a settng to activate it ?

And is this plugin discontinued ? 🙁