The Crossref REST API allows users to search and retrieve metadata for scholarly works, including DOIs, ISSNs, and funder identifiers. It provides access to various endpoints that expose data on works, journals, funders, and more, facilitating sophisticated searches and integrations for research purposes.
Build a citation lookup, author profile pages, or a literature discovery tool using Crossref metadata. You can fetch DOI-level records, search by fields, and filter or facet results returned as JSON. The REST API is free and public so you can try queries immediately; for very large or commercial bulk access Crossref offers a paid Metadata Plus option.
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