Your references live in Zotero, and you read papers elsewhere. SummarizePaper writes into your Zotero library: a paper with its summary, a collection kept in sync both ways, the findings of your bibliography check and your literature review. Saving a paper needs no account at all; the direct connection is Premium.

The examples use the collection Gas in debris discs of our other guides: three papers on the gas of debris discs, each with a note, tags and a reading status, sent to a real Zotero library and shown in Zotero 10.

1. Save a paper, free

On every paper page, the Zotero Connector of your browser recognises the paper and saves it with its metadata. Under Tools for this paper, Export also gives the RIS file, which Zotero, Mendeley and EndNote import; it holds the reference and the original abstract. A paper published since its preprint is exported as its published version, with its journal and DOI, and its arXiv identifier kept.

The tools of a paper page: Export to BibTeX, RIS (Zotero, Mendeley, EndNote), Obsidian and Notion, and, among the Premium tools, Send to Zotero with its summary.
RIS for any reference manager, free; "Send to Zotero with its summary" once your library is connected.

2. Connect your library

On the integrations page, click Connect my Zotero library: Zotero asks you to log in and to allow SummarizePaper to read and write your library and your groups. No key to copy. You can also paste a private key you create on zotero.org, with write access.

Your Zotero library (Premium): what the connection does, and the button Connect my Zotero library, or paste a key.
One click: Zotero asks you to allow the connection.

Once connected, choose the library used (yours or a group you may write to) and the Zotero collection single papers go to. The page lists your Zotero collections, to open one as a collection here or to check its references.

3. Send a paper with its summary

Send to Zotero with its summary creates the item, as its published version when there is one, with a note holding the AI summary and the key points. The note says it was written by a model, from which version of the paper and when; your own note is a note apart. A paper already in your library is not duplicated: it gets the collection, tags and notes it lacks. The item carries our citation key, in Zotero's Citation Key field and pinned for Better BibTeX, so your \cite commands match the .bib of our exports. Formulas in the summary are displayed by Zotero's note editor.

Zotero with the summary note of Observing planetary gaps in the gas of debris disks open: SummarizePaper, the line saying it was written by an AI model from arXiv:2411.14241v1 on 2024-11-28, then the key points, with masses written as formulas.
The summary note in Zotero: where it comes from, then the key points, formulas included.

4. Keep a collection in sync, both ways

In a collection, Send to Zotero and keep in sync creates a Zotero collection, or links one, and keeps them together:

The collection Gas in debris discs with its exports: BibTeX, RIS, Open in Overleaf, Obsidian (.zip), Markdown, Spreadsheet or Notion (CSV), and Send to Zotero and keep in sync (Premium).
"Send to Zotero and keep in sync", next to the other exports of the collection.

In Zotero, the collection has the same name and the same papers, each with its two notes, SummarizePaper and My note; the item keeps its journal, DOI and citation key:

Zotero 10 with the collection Gas in debris discs: three papers, each with the notes My note and SummarizePaper, and the Info pane of Observing planetary gaps in the gas of debris disks with its authors, journal Astronomy & Astrophysics, DOI and citation key bergezcasalou2024observing; the tags of the collection at the bottom left.
The synced collection in Zotero: the papers, their notes, and the item with its citation key.

The reading status becomes a tag (To read, Read, Key paper) next to your own tags: click it in Zotero's tag selector to see what is left to read.

Zotero with the tag To read selected: only Observing planetary gaps in the gas of debris disks remains, with its note My note open: Gaps carved by planets should show in the CO gas too.
The papers to read, with the note written in SummarizePaper.

The other way round, a Zotero collection opens here with From Zotero, under Add papers: you can then chat with its papers, compare them in a table, find the papers it may be missing or write its literature review, and it stays in sync.

From Zotero (Premium): connect your Zotero library to import one of its collections.
Import a whole Zotero collection.

5. Your results, written into Zotero

The exports of a literature review, with Send to Zotero, above How this review was searched.
"Send to Zotero" on a literature review.

Your Zotero collections can also serve as the reference papers of your daily paper alert and of your scoop watch: the new papers are ranked by closeness to them.

Without Premium

The RIS and BibTeX exports are free, on every paper and on every collection, and the Zotero Connector works on every paper page. A collection's .bib can also be linked in Overleaf, free; see the Overleaf guide.

FAQ

Do I need Premium to use Zotero?
No to save papers: the Zotero Connector of your browser recognises our paper pages, and every paper downloads as a RIS file. The direct connection (papers sent with their summaries, collections in sync, results written into Zotero) is Premium.
Will it create duplicates in my library?
No. A paper already in your library (same DOI, arXiv id or title) gets the collection, tags and notes it lacks instead of a second item.
What happens to my Zotero items when I remove a paper?
Removing a paper from a synced collection takes it out of the Zotero collection on the next sync, but the item stays in your library.
Is my Zotero key safe?
With the one-click connection, Zotero gives SummarizePaper a key itself, after you log in to Zotero; with a pasted key, you create it. Either way it is stored encrypted and used only to read and write your library when you ask, or for the daily sync of your collections. Disconnect at any time from the integrations page.

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