zotron vs CiteNexus
zotron is no longer listed on any marketplace we read: these are its last known data, as of 2026‑10‑21.
zotron is a plugin bundle for AI coding tools published by diamondrill. No marketplace we read lists it any more. CiteNexus is an MCP server published by akougkas. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-10-27. A plugin in this pair is no longer listed on any marketplace we read, so search engines are asked not to index the page.
Where each is published
| Marketplace |  CiteNexus | |
|---|---|---|
| Community marketplace dianzuan/zotron | Removed on 2026-10-21 Version: 0.2.5 Forks (GitHub): 1 Stars (GitHub): 6 Not marked · First seen |
Not listed |
| Official MCP Registry | Not listed | Listed Version: 0.2.2 Downloads/month (PyPI): 306 Downloads/week (PyPI): 37 Forks (GitHub): 0 Stars (GitHub): 1 Not marked · First seen |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
The facts side by side
| Fact | zotronno longer listed · | CiteNexus |
|---|---|---|
| Marketplaces that list it (differs) | 0 | 1 |
| Stars (GitHub) (differs) | 6 | 1 |
| Forks (GitHub) (differs) | 1 | 0 |
| Last release | Not published | Not published |
| Where it runs (differs) | Installs as a plugin bundle | On your machine (cite-nexus-mcp) |
| Transport (differs) | Not stated | stdio |
| Tools it declares | Not published | Not published |
| Environment variables it asks for (differs) | Not published | 8, secrets among them: 6 |
| Parts of the bundle (differs) | 2 | Not a bundle |
| Licence | Not stated | Not stated |
| Repository (differs) | github.com/dianzuan/zotron | github.com/akougkas/cite-nexus-mcp |
| Changes in the last 7 days (differs) | 2 | 0 |
| First seen (differs) | 2026-10-16 | 2026-10-11 |
Lines where the two differ have a tinted background and bold values. No value is marked better or worse: a plugin no marketplace lists any more is shown with its last known data, which we do not rank against current figures.
What to use instead of zotron
Plugins still listed whose own names, descriptions, tools and skills are closest in meaning to it. Comparable, not endorsed.
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Search your Zotero library, retrieve item metadata, and read full text from AI assistants.
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Zotero MCP server for Claude and ChatGPT: search, citations, safe writes, PDF passages and pages.
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zotero-mcp-local io.github.piiinpiiins/zotero-mcp-local
Search, read PDFs, and find related papers in your local Zotero library. Read-only, 100% local.
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Explore the active Zotero citation graph and save source-linked Obsidian or Notion research notes.
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Annotated research paper collection management — retrieve, read, extract, cross-reference scientific papers
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Academic literature search, retrieval, and private library management on top of OpenAlex.
What each says it does
zotron
Zotero library skill for Claude Code — search, manage, export, OCR, and RAG over your Zotero papers
CiteNexus
Search scholarly sources, verify references, and export citations with traceable evidence.
How to run each
zotron
No data for an automatic command: what its marketplaces declare does not say unambiguously how to connect it.
CiteNexus As a local MCP server: PyPI package
claude mcp add --env "OPENALEX_API_KEY=<YOUR_OPENALEX_API_KEY>" --env "SCOPUS_API_KEY=<YOUR_SCOPUS_API_KEY>" --env "SCOPUS_INSTTOKEN=<YOUR_SCOPUS_INSTTOKEN>" --env "SEMANTIC_SCHOLAR_API_KEY=<YOUR_SEMANTIC_SCHOLAR_API_KEY>" --env "SERPAPI_API_KEY=<YOUR_SERPAPI_API_KEY>" --env "WOS_API_KEY=<YOUR_WOS_API_KEY>" --transport stdio cite-nexus-mcp -- uvx cite-nexus-mcpRequires: OPENALEX_API_KEY (secret), SCOPUS_API_KEY (secret), SCOPUS_INSTTOKEN (secret), SEMANTIC_SCHOLAR_API_KEY (secret), SERPAPI_API_KEY (secret), WOS_API_KEY (secret)
Commands built only from what the marketplaces declare; the full set for every client is on each card.
Tools each declares
Neither one's marketplaces publish a list of tools, so there is nothing to compare.
Settings each asks for
The marketplaces of zotron publish no settings it asks for, so we do not compare settings.
What it can do: zotron · What it can do: CiteNexus · Compare two other plugins
Data comes from public marketplace files in GitHub repositories of their authors. Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.