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Crossref Official DOI Metadata & Citation Resolver

Fetches official Crossref bibliographic metadata, authors, publisher, license, and reference count for any DOI.

Call it (no API key)

GET https://api.agentdatahub.de/api/v1/call/crossref-doi-lookup?doi=10.1126%2Fscience.aaa8415&compact=1

Full metadata: without compact=1 · Markdown: format=llm · Only some fields: add &fields=a,b.c · MCP: tool call_api with {"apiId":"crossref-doi-lookup"}

Parameters

Example response (live, compact)

{
  "apiId": "crossref-doi-lookup",
  "data_freshness": "cached",
  "data": {
    "doi": "10.1126/science.aaa8415",
    "title": "Machine learning: Trends, perspectives, and prospects",
    "publisher": "American Association for the Advancement of Science (AAAS)",
    "container_title": "Science",
    "type": "journal-article",
    "cited_by_count": 8968,
    "references_count": 31,
    "authors": [
      {
        "given": "M. I.",
        "family": "Jordan",
        "affiliation": "Department of Electrical Engineering and Computer Sciences, Department of Statistics, University of California, Berkeley, CA, USA."
      },
      {
        "given": "T. M.",
        "family": "Mitchell",
        "affiliation": "Machine Learning Department, Carnegie Mellon University, Pittsburgh, PA, USA."
      }
    ],
    "url": "https://doi.org/10.1126/science.aaa8415"
  },
  "source": "Crossref Official DOI Registration Agency",
  "license": "Public Domain Metadata (Crossref)"
}

Recorded history available: /api/v1/history/crossref-doi-lookup?doi=10.1126%2Fscience.aaa8415

Source & license