Automating Reference obtention via N8N

[Ana Victoria]

Dear support team,

I'm trying to automate the obtention of resources from my library in Zotero and push them to an external database, in this case, Google Sheets. 
I successfully pulled the references through an HTTP request, using the API, however, I'd like the workflow to pull only new uploaded references on every execution. Is there a way I can request only uploaded resources after a specific timestamp? I tried using the Query parameter "since" and in the value I included the date Added in this format 2025-03-16T21:43:56Z Unfortunately that didn't work and the integrated AI-assistant suggested checking the format again. 

I'd be really appreciated if you could help me clarifying the problem and choosing the right format. 

Thank you in advance.

[Dan Stillman]

?since= takes a version number, not a timestamp. The process for efficiently getting changed items is covered here:

https://www.zotero.org/support/dev/web_api/v3/syncing