Cannot export Zoho Notebook data nor search via MCP (GDPR)

Cannot export Zoho Notebook data nor search via MCP (GDPR)

Hi,
I'm using Zoho Notebook for a few years now. Not as my main notetaking app, but for specific usecases I did find it handy. 
Now I want to export all my data. Preferably all notes in html format with metadata like note title, included images and parent notebook. If rich content and notebook name cannot be exported I would still like to be able to export the data.

I have tried the export functionality in the Macbook app, and also tried from Android, and from the web version. Only in the Mac app I find an export option which starts the progress bar at 25%, but never gets further. I got 45 notebooks with with most of them under 50 notes, only a few have more.

Also I have tried to access my data via a Zapier MCP server with an LLM as a client, because Zapier seems to be the only that has an integration set up with Zoho Notebook. Unfortunately this also doesn't seem to work. Zoho only allows accessing notes via ID (which cannot be traced via trhe UI, and doesn't have other search operations. Only to create notes, which is not my usecase.

I feel I am hitting a roadblock, but really need to get ownership over my data.
If there is no programmatic solution, I would like to request a database dump as last resort, as long as all media files associated to the data are included. I prefer a working export functionality in some sort though.

Specs:
Mac Sequoia (intel chip 2019)

Kind Regards,
Dirk