“Online actions” in Pushcut will send the notification’s or action’s “input” to integromat/zapier.
so, if the notification came through an integration or webhook with input, you will see this passed through in the online action trigger (also called “Input” there).
about the get/post directly: you can use the Pushcut API (I posted about it here) to register your own URLs as online actions.
Pushcut will simply post a payload there when you execute the action - including the input.
I do not plan to add a “Webhook Trigger Editor” sort of thing where you can customize the headers, content, and URLs that you want to trigger ATM. you can use integromat, zapier, or shortcuts for that.
I hope this helps.
Let me know if this is enough for your use case or if something is still in the way!