io.github.jtl-neo/crossref-mcp
MCP server wrapping the Crossref REST API for scholarly metadata.
MCP server · by jtl-neo
About
io.github.jtl-neo/crossref-mcp is an MCP server published by jtl-neo. Marketplaces we read that list it: 1 (Official MCP Registry). We first saw it on 2026-10-11 and have recorded no change since. As of our marketplace pass on 2026-10-13.
What it asks for
- Runs on your machine
- Secrets: 2
- Settings: 3
Requires: CROSSREF_PLUS_TOKEN (secret), MCP_API_KEY (secret)
What it declares, asks for and runs, in full
Only install plugins from developers you trust. We list what marketplaces publish and do not test plugins.
Package
PyPI crossref-mcp (crossref-mcp on PyPI)
- PyPI downloads/week: 34 (2026-10-13)
- PyPI downloads/month: 124 (2026-10-13)
- Latest version on PyPI: 0.1.0, published 2026-06-03
No known vulnerabilities in OSV for 0.1.0 (checked 2026-10-13)
PyPI facts come from pypi.org, PyPI downloads from pypistats.org. Each figure is the registry's own and is never added to another. A registry that publishes no figure shows none: no number is not zero. Vulnerability records come from OSV.dev (CC BY 4.0) and concern the declared version only; a listing that declares no version gets no answer. We do not scan code.
Works with
- Claude Code
- Codex
- Cursor
- VS Code
- Copilot CLI
From the marketplaces that list it and the MCP transport it declares, as each client documents them. We do not test plugins.
Connect
Commands and configs built only from what its marketplaces declare. We do not run them for you and do not test plugins.
As a local MCP server: PyPI package
Built from what Official MCP Registry declares.
claude mcp add --env "CROSSREF_PLUS_TOKEN=<YOUR_CROSSREF_PLUS_TOKEN>" --env "MCP_API_KEY=<YOUR_MCP_API_KEY>" --transport stdio crossref-mcp -- uvx crossref-mcp[mcp_servers.crossref-mcp]
command = "uvx"
args = ["crossref-mcp"]
[mcp_servers.crossref-mcp.env]
CROSSREF_PLUS_TOKEN = "<YOUR_CROSSREF_PLUS_TOKEN>"
MCP_API_KEY = "<YOUR_MCP_API_KEY>"{
"mcpServers": {
"crossref-mcp": {
"command": "uvx",
"args": [
"crossref-mcp"
],
"env": {
"CROSSREF_PLUS_TOKEN": "<YOUR_CROSSREF_PLUS_TOKEN>",
"MCP_API_KEY": "<YOUR_MCP_API_KEY>"
}
}
}
}Replace the values in angle brackets with your own. We show the names of the settings, never values.
Optional settings it also lists: CROSSREF_MAILTO.
Where it is published
| Marketplace | Status | Version | Figures | Verified | First seen |
|---|---|---|---|---|---|
| Official MCP Registry (Open the registry record) | Listed | 0.1.0 | Downloads/month (PyPI): 124 Downloads/week (PyPI): 34 Forks (GitHub): 0 Stars (GitHub): 0 |
Not marked |
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.
What changed
Nothing has moved on this plugin since we started watching it.
Similar plugins
Products whose own names, descriptions, tools and skills are closest in meaning to this one, on every marketplace we read. Closeness is ranked within this list only.
-
crossref-mcp-server io.github.cyanheads/crossref-mcp-server
Resolve DOIs, search ~155M scholarly works, and fetch references via the Crossref REST API.
-
arXiv, PubMed, Crossref and OpenAlex scholarly metadata.
-
crossref-mcp io.github.mrfentmen/crossref-mcp
Search scholarly works and resolve DOIs through Crossref. No key required.
-
scienceon-mcp io.github.rubatoyd/scienceon-mcp
KISTI ScienceON OpenAPI literature search & metadata collection (MCP server + CLI)
-
lit-mcp io.github.gauravfs-14/lit-mcp
MCP server for academic literature databases (arXiv, DBLP) to accelerate research using LLMs.
-
crossref io.github.SMABoundless/crossref
Search and retrieve scholarly metadata from the Crossref REST API
-
datacite-mcp-server io.github.cyanheads/datacite-mcp-server
Search DataCite datasets and software, fetch DOI metadata, trace relations, format citations.
-
openalex-mcp-server io.github.cyanheads/openalex-mcp-server
Access the OpenAlex academic research catalog — 270M+ publications.
-
kci-openapi-mcp io.github.rubato103/kci-openapi-mcp
KCI (Korea Citation Index) literature & citation search via REST Open API + OAI-PMH
-
arxiv-mcp-server io.github.cyanheads/arxiv-mcp-server
Search arXiv, fetch paper metadata, and read full-text content.
Similar plugins by marketplace
The same question asked of one marketplace at a time: is there an analog of this plugin there?
Has a listing on Claude Code: claude-plugins-community (5)
-
Zero-config MCP server for searchable documentation. SQLite or PostgreSQL.
-
Claude Code skill that verifies BibTeX entry content against Google Scholar and CrossRef.
-
nodebench io.github.HomenShum/nodebench
260 MCP tools across 49 domains. AI Flywheel, quality gates, research, web scraping.
-
Forensic-grade PubMed research engine for Claude Code. Search 36M+ biomedical articles with PICO-structured queries, synthesize evidence with GRADE confidence ratings, critically…
-
mcp-server io.github.cap-js/mcp-server
Model Context Protocol (MCP) server for AI-assisted development of CAP applications.
Has a listing on Claude Code: claude-plugins-official (5)
-
mcp-server io.github.cap-js/mcp-server
Model Context Protocol (MCP) server for AI-assisted development of CAP applications.
-
mdk-mcp-server io.github.SAP/mdk-mcp-server
Model Context Protocol (MCP) server for AI-assisted development of MDK applications.
-
Connect Claude to a private MCP server through an Anthropic MCP tunnel. The /create-docker-mcp-tunnel command drives the Docker Compose quickstart end to end: certificates, proxy…
-
Figma design platform integration. Access design files, extract component information, read design tokens, and translate designs into code. Bridge the gap between design and…
-
Search companies and contacts, enrich leads, find lookalikes, and get AI-ranked contact recommendations. Pre-built skills chain multiple ZoomInfo tools into complete B2B sales…
Has a listing on Claude: knowledge-work-plugins (5)
-
Connect to preclinical research tools and databases (literature search, genomics analysis, target prioritization) to accelerate early-stage life sciences R&D
-
Figma design platform integration. Access design files, extract component information, read design tokens, and translate designs into code. Bridge the gap between design and…
-
Search companies and contacts, enrich leads, find lookalikes, and get AI-ranked contact recommendations. Pre-built skills chain multiple ZoomInfo tools into complete B2B sales…
-
Sanity content platform integration with MCP server, agent skills, and slash commands. Query and author content, build and optimize GROQ queries, design schemas, and set up Visual…
-
gk-cli com.gitkraken/gk-cli
The GitKraken MCP Server for managing repos, PRs, issues across GitHub, GitLab, Bitbucket and more.
Has a listing on Codex: openai-curated (openai/plugins) (5)
-
Work with Zotero from Codex: search your library, export BibTeX, insert citations, and import references through the Zotero desktop app.
-
Consensus is the go-to MCP for academic research. Connect directly to 220M+ peer-reviewed papers to search, synthesize, and build structured research outputs from within your…
-
General life-sciences research workflows with query routing, evidence synthesis, and optional parallel subagent analysis across genetics, omics, biology, chemistry, structure…
-
Cloudflare platform plugin with curated skills for Workers, Wrangler, and Agents SDK plus the official Cloudflare API MCP server.
-
Evaluate Codex skills and plugins from chat with a beginner-friendly start command, local-first reports, token budget explanations, and guided benchmarking.
Has a listing on Community GitHub marketplaces (5)
-
arxiv-mcp-server io.github.blazickjp/arxiv-mcp-server
Search arXiv papers, download full text, semantic search, citation graphs, and alerts via MCP.
-
Literature, Zotero, PDF, citation, materials, and scientific image tools for research agents.
-
Checks every LaTeX reference against Crossref, dblp, arXiv, DataCite, PubMed and OpenAlex. No LLM.
-
Section-level doc search for .md, .rst, .adoc, .ipynb, .html, .yaml, .json, and OpenAPI specs.
-
calibre-mcp io.github.caelum29/calibre-mcp
Calibre ebook library server: search, read content, curate metadata, semantic search, gated writes.
Has a listing on Copilot CLI: github/awesome-copilot (5)
-
Complete toolkit for building Model Context Protocol (MCP) servers in Go using the official github.com/modelcontextprotocol/go-sdk. Includes instructions for best practices, a…
-
Complete toolkit for building Model Context Protocol (MCP) servers in TypeScript/Node.js using the official SDK. Includes instructions for best practices, a prompt for generating…
-
Complete toolkit for building Model Context Protocol (MCP) servers in Kotlin using the official io.modelcontextprotocol:kotlin-sdk library. Includes instructions for best…
-
Safe BLE diagnostics, evidence workflows, and guarded automation for AI agents.
-
Figma design platform integration. Access design files, extract component information, read design tokens, and translate designs into code. Bridge the gap between design and…
Has a listing on Copilot CLI: github/copilot-plugins (5)
-
mcp-apps
Generate MCP App widgets for MCP tools. Produces self-contained HTML widgets using the MCP Apps protocol.
-
Build Power Apps Canvas Apps using the Canvas Authoring MCP server.
-
Toolkit for building Microsoft 365 Copilot declarative agents — scaffolding, JSON manifest development, and capability configuration.
-
Navigate and interact with your C++ code using the Microsoft C++ Language Server.
-
workiq
Query Microsoft 365 data with natural language — emails, meetings, documents, Teams messages, and more.
Has a listing on Cursor: cursor/plugins (5)
-
Let Grok Bot reach MCP servers on your private Tailscale network. Sign in to Tailscale to connect your tailnet; Grok Bot joins it as one tagged device and only reaches the hosts…
-
Search docs, read pages, and update tables.
-
playwright-mcp io.github.microsoft/playwright-mcp
Playwright Tools for MCP
-
Capture, search, and organize notes and collections.
-
CLI-backed repo compatibility scans plus agents that audit startup, validation, and docs against reality.
Has a listing on Docker MCP Catalog (5)
-
The Official Model Context Protocol (MCP) server for Kagi Search & other tools.
-
🔥 Official Firecrawl MCP Server - Adds powerful web scraping and search to Cursor, Claude and any other LLM clients.
-
MCP, CLI, Skills for searching and downloading academic papers from multiple sources like arXiv, PubMed, bioRxiv, etc.
-
Access to Rube's catalog of remote MCP servers.
-
Pull up-to-date, version-specific documentation and code examples for any library or framework straight into your prompt.
Has a listing on Official MCP Registry (5)
-
crossref-mcp-server io.github.cyanheads/crossref-mcp-server
Resolve DOIs, search ~155M scholarly works, and fetch references via the Crossref REST API.
-
arXiv, PubMed, Crossref and OpenAlex scholarly metadata.
-
crossref-mcp io.github.mrfentmen/crossref-mcp
Search scholarly works and resolve DOIs through Crossref. No key required.
-
scienceon-mcp io.github.rubatoyd/scienceon-mcp
KISTI ScienceON OpenAPI literature search & metadata collection (MCP server + CLI)
-
lit-mcp io.github.gauravfs-14/lit-mcp
MCP server for academic literature databases (arXiv, DBLP) to accelerate research using LLMs.
Found by meaning, not by shared code or a shared repository: similar plugins stay separate products, and this is not a review or a recommendation.
Is this your plugin?
Add it to your projects and prove you maintain it with a file in its repository, a file on your domain or a DNS record. You get alerts when a marketplace lists it, drops it, changes its verified mark or what it asks for, and its remote endpoint goes on monitoring as a web service.
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.