Plugins / Reading & PDFs

Paper Nexus

by JunyanKang · github.com/JunyanKang/paper-nexus

Previews a paper when you hover a citation in the PDF reader, with translated abstracts, a read-later list and an author network from your library.

Paper Nexus has Atlas grade B (use with care) because it installs other add-ons. It works with Zotero 10. Last checked 6 Nov 2026.

View source
Downloads a .xpi file (2.4 MB). In Zotero, open Tools → Plugins and install it from the file.
In useAn estimate of how many copies of Zotero have it: Zotero downloads each new version once for every copy that has the plugin, so we count the downloads of its most-downloaded recent release. Rounded. Plugins that update from outside GitHub count low.
6
DownloadsAll-time downloads of its release files from GitHub, counting every update. Installs from elsewhere aren't counted.
50
ReleasesVersions published on GitHub. Everyone who has the plugin downloads each one again, which adds up in Downloads.
32
StarsPeople who starred the repository on GitHub: a rough measure of interest.
1
ContributorsPeople who have committed code to the repository.
1
LicenceThe licence the code is published under, as GitHub reports it.
NOASSERTION
B
Atlas gradeUse with care
because it installs other add-ons
Applies to v1.1.4, released 13 Oct 2026Code checked · not yet tested in a live Zotero
Documentation in Chinese onlyOur summary is in English, but the plugin's own docs and support are in Chinese.
What we found in the codeSets the gradeThe worst finding in these three areas sets the grade.
Code transparencyReadable code; not yet checked against the published sourceThe developer uploaded the release file from the JunyanKang account. We haven't yet checked whether this file matches the public source code.UnknownWe couldn't check this yet.
Updates
Updates come from kanglab.coolThe update address offers version 1.1.4, which isn't newer than this one, so Zotero won't update it for now
Where your data goesOnly contacts services we could identify25 addresses in 4 groups.LowLow concern: normal for plugins that do this job. Listed so you know.
AI services (10)
api.anthropic.comnamed in its codeThe address is in its code, but we didn't trace a request to it. It may be a link or unused.api.deepseek.comnamed in its codeThe address is in its code, but we didn't trace a request to it. It may be a link or unused.api.minimax.cnnamed in its codeThe address is in its code, but we didn't trace a request to it. It may be a link or unused.api.moonshot.cnnamed in its codeThe address is in its code, but we didn't trace a request to it. It may be a link or unused.api.openai.comnamed in its codeThe address is in its code, but we didn't trace a request to it. It may be a link or unused.ark.cn-beijing.volces.comnamed in its codeThe address is in its code, but we didn't trace a request to it. It may be a link or unused.dashscope.aliyuncs.comnamed in its codeThe address is in its code, but we didn't trace a request to it. It may be a link or unused.generativelanguage.googleapis.comnamed in its codeThe address is in its code, but we didn't trace a request to it. It may be a link or unused.open.bigmodel.cnnamed in its codeThe address is in its code, but we didn't trace a request to it. It may be a link or unused.qianfan.baidubce.comnamed in its codeThe address is in its code, but we didn't trace a request to it. It may be a link or unused.
Translation (3)
edge.microsoft.comnamed in its codeThe address is in its code, but we didn't trace a request to it. It may be a link or unused.translate.googleapis.comnamed in its codeThe address is in its code, but we didn't trace a request to it. It may be a link or unused.transmart.qq.comnamed in its codeThe address is in its code, but we didn't trace a request to it. It may be a link or unused.
Scholarly services (11)
api.crossref.orgapi.openalex.orgnamed in its codeThe address is in its code, but we didn't trace a request to it. It may be a link or unused.api.semanticscholar.orgnamed in its codeThe address is in its code, but we didn't trace a request to it. It may be a link or unused.doi.orgnamed in its codeThe address is in its code, but we didn't trace a request to it. It may be a link or unused.europepmc.orgnamed in its codeThe address is in its code, but we didn't trace a request to it. It may be a link or unused.eutils.ncbi.nlm.nih.govnamed in its codeThe address is in its code, but we didn't trace a request to it. It may be a link or unused.orcid.orgnamed in its codeThe address is in its code, but we didn't trace a request to it. It may be a link or unused.pmc.ncbi.nlm.nih.govnamed in its codeThe address is in its code, but we didn't trace a request to it. It may be a link or unused.pub.orcid.orgpubmed.ncbi.nlm.nih.govnamed in its codeThe address is in its code, but we didn't trace a request to it. It may be a link or unused.www.ebi.ac.uk
Code hosting (1)
raw.githubusercontent.com
Where we found it
api.crossref.orgabstracts.js · line 203
put.DOI);if(!doi&&C.plainTitle(input.title).length<12)return null;const url=doi?'https://api.crossref.org/works/'+encodeURIComponent(doi):'https://api.crossref.org/works?rows=3&query.bibliographic='+e
pub.orcid.orgcareer.js · line 36
nst results=await Promise.allSettled(['person','activities'].map(route=>request('https://pub.orcid.org/v3.0/'+oid+'/'+route)));if(stopped)throw Error('已关闭');const person=results[0].status==='fulfilled
www.ebi.ac.ukabstracts.js · line 198
const data=JSON.parse(await request(ctx,'https://www.ebi.ac.uk/europepmc/webservices/rest/search?query='+encodeURIComponent(query)+'&format=json&resultType=core&pageSize=5'));
Powerful capabilitiesInstalls other add-ons, and 4 moreMediumMedium concern: worth reading before you install. One medium finding makes the grade B.
Medium concern (1)
Installs other add-ons
Low concern (4)
Uses the clipboardStores API keys or passwordsWorks with files on your computerUses Zotero's password manager
Where we found it
Installs other add-onsloom-migration.js · line 45

From its catalogue at github.com, checked against a hash

const install=await manager.getInstallForURL(this.url,{hash:this.hash});job.install=install;if(job.cancelled){install.cancel();throw Error('Migration cancelled');}
Before you installShown, not gradedFacts to help you decide. They don't change the grade.
Works withZotero 10 · not 9, 11 betaUpdates automatically
Zotero 9 ✗ doesn't workZotero 10 ✓ worksZotero 11 beta ✗ doesn't work
What you'll needNothing extra detectedDetected automatically from its code
No further detail for this area yet.
MaintenanceActive · last release 13 Oct 20261 contributor
No further detail for this area yet.
LanguagesDocumentation in Chinese onlyInterface language not declared
No further detail for this area yet.
We report what we found in the code. Open any area for the evidence.How we gradeReport a problem

What it does

Written by AI from the README

Previews a paper when you hover a citation in the PDF reader, with translated abstracts, a read-later list and an author network from your library. Now merged into Paper Loom, which this version installs. Chinese interface.

Following a citation or an author normally means leaving Zotero to search. Citation lookups and the author network need no account; translation can use your own model API.

What you'll need

Detected automatically

We haven't detected any setup requirements. That isn't the same as none: check the developer's README.

Where your data goes

We found: only contacts services we could identify. 25 addresses in 4 groups.

AI services (10)
api.anthropic.comnamed in its codeapi.deepseek.comnamed in its codeapi.minimax.cnnamed in its codeapi.moonshot.cnnamed in its codeapi.openai.comnamed in its codeark.cn-beijing.volces.comnamed in its codedashscope.aliyuncs.comnamed in its codegenerativelanguage.googleapis.comnamed in its codeopen.bigmodel.cnnamed in its codeqianfan.baidubce.comnamed in its code
Translation (3)
edge.microsoft.comnamed in its codetranslate.googleapis.comnamed in its codetransmart.qq.comnamed in its code
Scholarly services (11)
api.crossref.orgapi.openalex.orgnamed in its codeapi.semanticscholar.orgnamed in its codedoi.orgnamed in its codeeuropepmc.orgnamed in its codeeutils.ncbi.nlm.nih.govnamed in its codeorcid.orgnamed in its codepmc.ncbi.nlm.nih.govnamed in its codepub.orcid.orgpubmed.ncbi.nlm.nih.govnamed in its codewww.ebi.ac.uk
Code hosting (1)
raw.githubusercontent.com
Evidence · file and line
api.crossref.orgabstracts.js · line 203
put.DOI);if(!doi&&C.plainTitle(input.title).length<12)return null;const url=doi?'https://api.crossref.org/works/'+encodeURIComponent(doi):'https://api.crossref.org/works?rows=3&query.bibliographic='+e
pub.orcid.orgcareer.js · line 36
nst results=await Promise.allSettled(['person','activities'].map(route=>request('https://pub.orcid.org/v3.0/'+oid+'/'+route)));if(stopped)throw Error('已关闭');const person=results[0].status==='fulfilled
www.ebi.ac.ukabstracts.js · line 198
const data=JSON.parse(await request(ctx,'https://www.ebi.ac.uk/europepmc/webservices/rest/search?query='+encodeURIComponent(query)+'&format=json&resultType=core&pageSize=5'));

Other plugins that do this

Matched on what they do

For the same job, work with Zotero 10 and graded B or better. Closest match first.

  • B
    Paper Voice · 论文听读

    Reads PDFs aloud in the Zotero reader with offline voices.

    Matches “read english pdf aloud” · 113 downloads · Active · Zotero 10
Compare all 2 side by side
How we pick these

By how closely what they do matches this plugin, using descriptions and the phrases people search with. Copies and forks of this plugin are listed under Forks and copies instead. No plugin pays to appear here.

Forks and copies

No forks listed.

The developer's response

The developer hasn't responded. Developers can reply here, and their reply sits next to our findings.I'm the developer

Ratings and reviews

What people who use it say. This is separate from the grade, which is what the code does, and never changes it.

No ratings yet.

Write a review
Your rating of Paper Nexus v1.1.4

Your review is public, under the name you give, and published with the directory's data under CC BY 4.0. Links are removed. We never store your IP address: a scrambled code made from it is kept for 30 days to catch fake reviews. Every review is checked before it's published; how fake ones are spotted isn't published, so it can't be gamed.

Install Paper Nexus
BUse with care
Before you install: It installs other add-ons.Read the finding
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