MCP For Claude Marketplace
CrossRef

CrossRef MCP Connector for Claude

A+

Search 150M+ academic works — find journal articles, books, DOIs, citations and scholarly metadata.

13 tools Official Updated Jun 28, 2026 Official Vinkius Partner
More Details Connect to Claude

Connect to CrossRef and explore the world's largest scholarly metadata database through natural conversation — no API key needed.

What you can do

  • Work Search — Search 150M+ academic works by title, author, DOI, keywords or abstract
  • DOI Lookup — Get complete metadata for any academic work by its DOI
  • Journal Search — Browse academic journals by name with ISSNs and work counts
  • Publisher Search — Find academic publishers with their work counts and journal lists
  • Funder Search — Discover research funding organizations and their funded works
  • Member Search — Browse CrossRef member organizations that register DOIs
  • Work Types — Explore publication types (journal-article, book-chapter, proceedings, dataset)
  • Licenses — View academic licenses used in scholarly works

How it works

  1. Subscribe to this server
  2. No API key needed — start searching immediately
  3. Explore academic metadata from Claude, Cursor, or any MCP-compatible client

Who is this for?

  • Researchers — find relevant papers, check citation counts and discover related works
  • Students — search for papers by topic, find journals and explore academic literature
  • Librarians — look up DOIs, verify citations and discover journal metadata
academic-metadatadoi-lookupscholarly-publishingcitationsresearch-tools

13 tools expose this connector's capabilities to your AI agent.

get_funder

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

get_journal

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

get_licenses

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

get_member

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

get_publisher

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

get_types

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

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

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

search_funders

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

search_journals

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

search_members

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

search_publishers

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

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

See how to talk to your AI agent using CrossRef.

Search for papers about machine learning published in 2024.

Found 50+ papers about machine learning from 2024. Top results include works in Nature Machine Intelligence, IEEE Transactions, ACM Computing Surveys. Each with DOIs, authors, abstracts and citation counts.

Get metadata for DOI 10.1038/nature12373.

Title: 'Deep learning in neural networks: An overview'. Authors: Jürgen Schmidhuber. Journal: Neural Networks, 2015. Publisher: Elsevier. Citations: 15,000+. DOI: 10.1016/j.neunet.2014.09.003.

Find journals published by Nature Publishing Group.

Found 100+ journals from Springer Nature including: Nature (ISSN: 0028-0836, 200K+ works), Nature Medicine, Nature Biotechnology, Nature Communications, Scientific Reports. Each with ISSN, work counts and URLs.

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.

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