I need in consult, what can I do to integrate some other CMDB than i-doit.
For example: Just release all i-doit API and point Zammad to it.
Or may be some another thoughts.
Another emample - Zammad has it own API (may be webhooks) to integrate with anything.
What do you want to achieve? If it’s just some reference to a CMDB item, you could use a custom field in the ticket object, use the external data source type, and point that to a script that retrieves information from your CMDB. This is what we have done to integrate our devices from Netbox.