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Use CrossRef with your AI.

Connect your account once and let the AI you already use work with it, without building another integration. Search 140M+ scholarly works across all scientific disciplines. with DOI resolution, citation counts, author lookup, and full bibliographic metadata from the w

Included with plan

Ask AI about this Connector

Developed, maintained, and hosted by Vinkius.

MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED

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Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.

ChatGPTClaudeCursorPerplexityGeminiMicrosoft CopilotRaycastMeta AI

Complete set · 3 capabilities

The complete CrossRef capability set.

These are the exact actions your AI can choose when you ask it to work with CrossRef.

Capability set01 / 01

01-03

3 capabilities in this set.

Part of 3 available through CrossRef.

  1. 01

    Get crossref doi

    G. 10.1038/nature12373) and get complete metadata: title, all authors, journal, year, type, citation count, and abstract. Look up any scholarly work by its DOI

  2. 02

    Search crossref author

    Returns their publications sorted by relevance with citation counts. Find publications by a specific author

  3. 03

    Search crossref

    Every result includes DOI, citation count, and full bibliographic data. The world's largest DOI registry. Search 140M+ scholarly works across all scientific disciplines

Observed, not estimated

911ms average. Fast in production.

CrossRef is checked daily against the live service.

Daily averagePeak 1178ms
Aug 23Today
Fastest day
666ms
Slowest day
1178ms
14-day trend
Improving-27%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 3 capabilities arrive ready to run.

Preview access · not provider authentication

The vk_preview_* token belongs to Vinkius preview infrastructure. It lets Claude discover and display the capabilities of CrossRef, so you can see the experience inside your AI.

It does not authenticate your account with CrossRef. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.

CrossRef Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_tB5OKe9b8ptvjN39Svca4u5g8tQNgsRExGVMuy2H/mcp

Claude Desktop

Follow the steps below to connect in seconds.

  1. 1In Claude Desktop, open Settings → Connectors.
  2. 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
  3. 3Click Add and start a new chat — CrossRef capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "crossref-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_tB5OKe9b8ptvjN39Svca4u5g8tQNgsRExGVMuy2H/mcp"
    }
  }
}
  • Claude
  • ChatGPT
  • Cursor
  • VS Code
  • Windsurf
  • Claude Code
  • JetBrains
  • Cline

Step-by-step instructions for each client are in the guide. How to connect

FAQ

Questions CrossRef owners ask.

  • 01

    What exactly is a DOI and why is CrossRef important?

    A Digital Object Identifier (DOI) is a unique, permanent identifier assigned to every published scholarly work. like a social security number for academic papers. CrossRef maintains the world's largest DOI registry with 140M+ records, making it the authoritative source for bibliographic metadata across all publishers globally.

  • 02

    Is authentication or registration required to use this server?

    No. CrossRef's public API is free and open without authentication. Adding a polite email in the User-Agent header (which this server does automatically) grants access to the 'polite pool' with significantly faster response times.

  • 03

    What types of scholarly works can I find through CrossRef?

    CrossRef covers virtually every type of scholarly output: journal articles, book chapters, conference proceedings, preprints, datasets, dissertations, and technical reports. It aggregates metadata from 20,000+ publishers including Elsevier, Springer Nature, Wiley, Oxford University Press, and thousands of smaller publishers worldwide.

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