Hey @Nico67543, I'd recommend using the server API for this - check out the workflow endpoints, you can download them as packaged assets with a GET request: https://help.alteryx.com/current/en/server/api-overview/alteryx-server-api-v3/server-api-v3-objects/...
To get the appIDs etc you can do an initial call to retrieve this info and then dynamically build out the second call URL.
My current server version (show above) does not work with the v3 version of the API. Is there any other solution? for the old server?
I think the V1 endpoints would work for you if you are a curator.
GET /admin/v1/workflows/all to get the appids and then
GET /admin/v1/{appId}/package to download the packages.