Crossref Scholarly Works Scraper

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Search the Crossref catalog of 150M+ scholarly works (journal articles, preprints, books, datasets, and more) via its public REST API — no API key, no login, no anti-bot.

The actor is a polite Crossref client: it identifies itself with a contact User-Agent and a mailto query parameter so Crossref routes it to the faster "polite pool", and it uses deep cursor pagination (cursor=* → next-cursor) which is the only reliable way to page past 1,000 rows.

Input

Output

Each successful row:

{
"ok":true,
"doi":"10.1038/nature14539",
"title":"Deep learning",
"authors":["Yann LeCun","Yoshua Bengio","Geoffrey Hinton"],
"journal":"Nature",
"publisher":"Springer Science and Business Media LLC",
"type":"journal-article",
"publishedDate":"2015-05-28",
"citations":70000,
"subjects":["Multidisciplinary"],
"issn":["0028-0836","1476-4687"],
"abstract":null,
"url":"https://doi.org/10.1038/nature14539"
}

• authors are formatted "Given Family" (organizational authors fall back to their name).
• publishedDate is assembled from Crossref's date-parts (may be year-only or year-month for older records).
• citations is Crossref's is-referenced-by-count.
• abstract is the JATS-XML abstract stripped to plain text, or null when Crossref has none.
• Nullable fields: title, journal, publisher, type, publishedDate, abstract, and url may be null, and authors, subjects, and issn may be empty arrays, depending on what the publisher deposited with Crossref. doi is always present (rows without a DOI are dropped). citations defaults to 0 when absent.

Results are deduplicated by DOI. Charging is per successful work (work event). Diagnostic / empty / blocked rows (ok: false with an errorCode) are never charged — this includes BAD_INPUT (empty query or malformed fromDate), NO_RESULTS, and any network/block error.

Troubleshooting

• BAD_INPUT row, no results: you left query empty or fromDate isn't YYYY-MM-DD. Fix the input and re-run — you were not charged.
• NO_RESULTS row: your query/filter combination matched nothing in Crossref. Try broader keywords or drop the type/date filters.
• RATE_LIMITED / BLOCKED row: rare for Crossref. The actor already retries with backoff; if it persists, enable a proxy to use a different IP.

Notes

• Powered entirely by the public Crossref REST API (https://api.crossref.org/works). Please be considerate of the shared, free service.
• Citation counts and abstracts depend on what publishers deposit with Crossref; coverage varies by record.