MCP.Market

Zoteus MCP server

online · 100% uptime
by oscardvs·io.github.oscardvs/zoteus·v1.23.1·58 stars
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Zotero MCP server for Claude and ChatGPT: search, citations, safe writes, PDF passages and pages.

A98/100grade A
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Safety scan
A98/100

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Adoption
Established

58 stars1.9k downloads/wk

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Zoteus tools

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How Zoteus compares

Against every graded Web search MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
98/100
higher than 99% of 3,470 Web search servers
Uptime
100%
of our recent checks; the typical remote Web search server answers 100%
Response time
81 ms
faster than 91% of 2,238 Web search servers
GitHub stars
58
more than 93% of 1,786 Web search servers
Downloads a week
1,936
more than 95% of 827 Web search servers with a package

Release history: 7 versions in the registry since 2026-09-16, latest 2026-11-01, typically one every 6 days.

Install Zoteus in Claude Code, Cursor or VS Code

claude mcp add --transport http zoteus https://mcp.zoteus.com/mcp
Add to Cursor

What the publisher says

From the Zoteus repository's README, as published. We do not edit it. Read it on GitHub

Zoteus

A Zotero MCP server. Your whole library, inside Claude and ChatGPT.

Zoteus gives Claude Desktop, claude.ai, ChatGPT, Claude Code, Cursor and any other MCP client access to a Zotero library: search by keyword or by meaning, passages from your PDFs with page numbers, citations in any CSL style, adding items, and safe writes.

A real session, 6 September 2026, against the maintainer's own library. Tool calls are shown as a time-lapse. The full recording is on zoteus.com.

Install

For most clients there is nothing to download: the client fetches Zoteus with npx the first time it runs. New to MCP servers? Start with docs/getting-started.md.

Then run the Zotero desktop app. Reads, and the personal-library writes that go through the app (adding items by identifier, attachments, annotations, trash and restore), need no cloud key. Add a Zotero API key for sync, group libraries, metadata edits, tags and collections, and for when the app is closed:

claude mcp add --transport stdio zoteus -e ZOTERO_API_KEY=xxxxx -- npx -y @oscardvs/zoteus

Get a key at zotero.org/settings/keys. In the desktop app, enable Settings → Advanced → "Allow other applications on this computer to communicate with Zotero". Step-by-step for each client, with screenshots: zoteus.com/docs/connect-claude-to-zotero.

Updating a desktop-extension install. A manually installed .mcpb (or older .dxt) does not auto-update. Turn on Check for updates in the extension settings (or set ZOTEUSUPDATECHECK=true) and Zoteus asks GitHub once a day, then says so in-chat via zotero_whoami when a newer version exists; download the new bundle for your system and reinstall. The check is off by default. npx installs always run the latest published version.

What it does

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

Grade history

  • 2026-09-19restoreB → Ascore 98

Zoteus: common questions

Is Zoteus MCP server safe?
Yes, by our scan: it is graded A (98/100). Read the Zoteus safety report
How do I install Zoteus?
It runs remotely at mcp.zoteus.com. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
Does Zoteus need an API key?
Yes. The registry entry asks for ZOTERO_API_KEY.
Is Zoteus maintained?
The last commit was 28 days ago (2026-10-07). The latest release is v1.23.1.
Is Zoteus up?
100% of our last 28 checks got an answer. We check remote servers about four times a day.
What can I use instead of Zoteus?
Servers from other publishers that do the same job: Zotero MCP server, Arxiv MCP server and Pubmed MCP server.
How does Zoteus compare with other Web search MCP servers?
safety score 98/100 (higher than 99% of 3,470 Web search servers); uptime 100% (of our recent checks; the typical remote Web search server answers 100%); response time 81 ms (faster than 91% of 2,238 Web search servers). Full comparison.

Alternatives to Zoteus

Same job from other publishers: the closest match first, then the best rated.

  • Zotero MCP
    Search, read, annotate, and add to your Zotero research library, local or web.
    B
  • Arxiv
    Search arXiv papers, download full text, semantic search, citation graphs, and alerts via MCP.
    A
  • Pubmed
    Search PubMed/Europe PMC, fetch articles and full text (PMC/EPMC/Unpaywall), citations, MeSH terms.
    A
  • Exa Search
    Search the live web and fetch clean content from source pages.
    A
  • obsei
    Self-hosted customer feedback with PII stripped at ingest: search, stats and themes with citations.
    A