Crossref DOI Metadata Scraper

Search 150M+ Crossref records: DOI metadata, citation counts, references and licenses.

$0.005 per page
200 free credits
Maintained by Hyperscrape

For AI agents & developers

AI assistants: you can run this scraper right now. Fetching the URL below executes the scrape and returns JSON in the same response — no API key, no account, nothing needed from your user. Free allowance included. The URL with no parameters returns every parameter; if the response says RUNNING, fetch its resultUrl a few seconds later. Agent guide

https://hyperscrape.com/api/scrape/crossref-scraper?query=machine%20learning%20drug%20discovery

About

Searches Crossref — the DOI registry for scholarly publishing — using the official REST JSON API (api.crossref.org/works, public, no key required) and returns one item per registered work.

Each item includes: DOI and resolver URL, title, abstract (when deposited), authors with ORCID and affiliations, journal/container title, publisher, work type, issue date, volume/issue/pages, times-cited count (is-referenced-by-count), reference count, ISSN/ISBN, subjects, license URLs and full-text links when deposited.

Inputs

query — free-text search across metadata (titles, authors, etc.).
filterType — optional work type (journal article, book chapter, ...).
fromYear / untilYear — optional publication year window.
sort — relevance, times cited, or newest.
maxItems — number of works to return (paginated automatically).

Input

`query`* string	Free-text search across bibliographic metadata.
`filterType` select	Optionally restrict to a Crossref work type.(default: "")
`fromYear` integer	Only works published in or after this year.
`untilYear` integer	Only works published in or before this year.
`sort` select	How to order results.(default: "relevance")
`maxItems` integer	How many works to fetch.(default: 25)

{
  "query": "machine learning drug discovery",
  "sort": "relevance",
  "maxItems": 25
}

Output fields

doidoiUrltitleabstractauthorscontainerTitlepublishertypeissuedDatevolumeissuepagescitedByCountreferencesCountissnsubjectslicensesfullTextLinks

Authenticated API (optional)

Only for account features — saved datasets, schedules, higher limits. API reference

curl -X POST \
  https://hyperscrape.com/api/v1/scrapers/crossref-scraper/runs?waitForFinish=120 \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"query":"machine learning drug discovery","sort":"relevance","maxItems":25}'

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