Crossref Works & DOI Metadata
Pricing
$0.50 / 1,000 works
Crossref works and DOI metadata scraper for bibliographic enrichment. Export publication metadata as JSON; search modes also provide journal and funder records.
Choose the record type. Works can be scoped by journal ISSN or funder ID.
Keywords for works, journals or funders. Required for journal/funder search. For works, provide a query, filter, ISSN or funder ID.
Used in DOI mode. Bare DOI, doi: prefix and doi.org URLs are accepted. Duplicate DOI values are removed; invalid entries become uncharged error rows.
Optional works scope, for example 0028-0836. Cannot be combined with funderId.
Optional works scope: numeric Crossref funder ID, 10.13039/ DOI or its doi.org URL. Cannot be combined with issn.
Works mode only. Comma-separated official filters, for example from-pub-date:2024-01-01,type:journal-article,has-license:true. Unsupported filters produce a source error row.
Sorting for works search. Relevance requires a search query. Not applied in other modes.
Ordering for works search. Not applied in other modes.
Optional real contact email that you monitor. Sent to Crossref in the mailto parameter and User-Agent to request polite-pool access. Never saved to result rows.
Hard cap on total output rows, including error rows. DOI duplicates do not consume this cap.
Up to three DOI tasks are scheduled at once. HTTP requests remain serial in both pools to respect Crossref concurrency limits.
Records requested per page, additionally limited by remaining maxItems.
Include references array for work records. referenceCount is included regardless. Full reference lists can make records large.
Timeout per HTTP attempt.
