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ClaudeChatGPTPerplexityGeminiMicrosoft CopilotRaycastMeta AIGrokZ.aiQwenKimi
DeepSeekMistralCursorVS CodeWindsurfJetBrainsClineLovableVercel AI SDKLangChain

Use CrossRef with your AI.

Connect your account once and let the AI you already use work with it, without building another integration. Search 150M+ academic works. find journal articles, books, DOIs, citations and scholarly metadata.

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 · 13 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 / 04

01-04

4 capabilities in this set.

Part of 13 available through CrossRef.

  1. 01

    Search journals

    Returns journal titles, ISSNs, publisher names and work counts. Search academic journals by name

  2. 02

    Search members

    Returns member names, IDs, prefixes and work counts. Search CrossRef member organizations

  3. 03

    Search publishers

    Returns publisher names, work counts, journal counts and organization names. Search academic publishers by name

  4. 04

    Get works by doi list

    Provide a comma-separated list of DOIs. Returns metadata for each work including title, authors, publication date and journal. Get metadata for multiple works by their DOIs

Capability set02 / 04

05-07

3 capabilities in this set.

Part of 13 available through CrossRef.

  1. 05

    Search funders

    Returns funder names, IDs, country codes, URIs and work counts. Search research funders by name

  2. 06

    Get funder

    Returns funder name, country, URI, work count and location info. Get details for a specific research funder

  3. 07

    Get journal

    Returns journal title, ISSNs, publisher, work count and URL. Get details for a specific journal by ISSN

Capability set03 / 04

08-10

3 capabilities in this set.

Part of 13 available through CrossRef.

  1. 08

    Get licenses

    Returns license IDs, URLs and names. Get list of known licenses used in academic works

  2. 09

    Get member

    Returns member name, prefixes, work counts and location info. Get details for a specific CrossRef member

  3. 10

    Get publisher

    Returns publisher name, work count, journal count and location info. Get details for a specific publisher

Capability set04 / 04

11-13

3 capabilities in this set.

Part of 13 available through CrossRef.

  1. 11

    Get types

    ). Useful for filtering searches by publication type. Get list of academic work types

  2. 12

    Get work

    Returns title, authors, abstract, publication date, journal, publisher, license, references, citation count and full citation info. Get metadata for a specific academic work by DOI

  3. 13

    Search works

    Supports free-text query and advanced filtering by type, publication date, author, journal, publisher, funder, license and more. Returns titles, authors, publication dates, DOIs, citation counts and abstracts. Search academic works by title, author, DOI or keywords

Observed, not estimated

896ms average. Fast in production.

CrossRef is checked daily against the live service.

Daily averagePeak 1176ms
Aug 20Today
Fastest day
759ms
Slowest day
1176ms
14-day trend
Slowing+9%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 13 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_7En7HkI3TaUnNOjPwedGkhoVim2MwFUFc9BHK8QJ/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-alternative-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_7En7HkI3TaUnNOjPwedGkhoVim2MwFUFc9BHK8QJ/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

    Do I need an API key?

    No! CrossRef API is completely free and open. No authentication required. Just subscribe and start searching. Rate limit is 50 requests/second for polite pool.

  • 02

    What is a DOI?

    DOI (Digital Object Identifier) is a unique alphanumeric string assigned to academic works. It provides a persistent link to the work's location online. Example: 10.1038/nature12373.

  • 03

    How can I filter search results?

    Use the filter parameter with CrossRef filter syntax. Examples: 'type:journal-article' for journal articles only, 'from-pub-date:2024' for papers from 2024 onwards, 'has-abstract:true' for papers with abstracts, 'has-full-text:true' for open access papers.

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