Web API: too many requests

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maie...@gmail.com

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May 6, 2026, 5:10:15 AM (yesterday) May 6
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Hi, 
I have a workflow where I use the web API to move items to a different collection after processing them.

Now, I've ran into this:

requests.exceptions.HTTPError: 429 Client Error: Too Many Requests for url:...

What is the limit of the api? How can I process more items?
Best,
Denis




Annabelle Wiegart

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May 6, 2026, 8:25:13 AM (yesterday) May 6
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Hi,

I'm dealing with the same problem when creating collections and items via Web API. I know there is some info about rate limiting here: https://www.zotero.org/support/dev/web_api/v3/basics. But it would be good to have some general guidelines about rate limits so I can configure my app to respect them instead of having to react to potential 429 responses in every request.

Best,
Annabelle
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