Disable notifications when using API

What is your original issue/pain point you want to solve?
I want to make calculations in a ticket with a 3rd-party-solution via webhook/API.

Which are one or two concrete situations where this problem hurts the most?
In this case, calculate costs based of accounted time and a hourly rate from an external database. And the PUT /api/v1/tickets/<id>-call is firing agent notifications, even though this “change” is just a calculation result of a previous ticket update.

Why is it not solvable with the Zammad standard?
There is no way to surpress agent notification on API-updates:
Update Ticket using rest api while suppressing notifications - Technical assistance - Zammad - Community

What is your expectation/what do you want to achieve?
Preventing double notifications.