FRESH OBSERVED ENDPOINT EVIDENCE · DATASET REVISION 292857
Look up scholarly metadata for any DOI via CrossRef. Returns title, authors, journal, publication date, abstract, citation count, references, license, URL. Use ?doi=10.1038/nature12373. Built for AI research agents doing literature review and citation graph traversal.
Look up scholarly metadata for any DOI via CrossRef. Returns title, authors, journal, publication date, abstract, citation count, references, license, URL. Use ?doi=10.1038/nature12373. Built for AI research agents doing literature review and citation graph traversal.
Endpoint
https://api.x402node.dev/citation/doi
Category inference
Capabilities look up scholarly metadata
Routable now yes
Observed price $0.008
Craft score 81.2
Last probe 2026-07-29T01:26:14.021Z
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Machine-readable: capability profile · reputation evidence