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SiteCheck Web Intel – Crossref Academic Paper Lookup
x402
SiteCheck Web Intel – Crossref Academic Paper Lookup is a paid API for AI agents from api.webintel-api.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-24).
Looks up a scholarly paper by DOI via Crossref's public REST API, returning title, authors, journal, publication date, cited-by count, publisher, and link.
Price / call$0.002
Success—
StatusUnknown
How this service works
Crossref DOI lookup (public REST API, no key): title, authors, journal, publication date, cited-by count, publisher and link for one paper. Unknown DOIs return 404.
Output
Returns structured metadata for the requested paper including: full title, list of authors, journal/venue name, publication date, cited-by count, publisher name, and a URL link to the paper. Returns 404 if the DOI is not found in Crossref.
Example use cases
Verify research paper authorship
“I have the DOI 10.1016/j.cell.2021.01.048 — can you tell me who the authors are and what journal published it?”
Check citation impact of a paper
“How many times has the paper with DOI 10.1126/science.1260419 been cited, and when was it published?”
Enrich bibliography with metadata
“I've got DOI 10.1002/jcc.21787 from a reference list — can you pull the full title, publisher, and a link to the paper for me?”
Technical details
Endpoint
GEThttps://api.webintel-api.workers.dev/api/search/crossref-academic-paper?utm_source=zero.xyzWhen to prefer
Use this endpoint when you have a specific DOI and need authoritative bibliographic metadata from Crossref — particularly title, authors, journal, publication date, citation count, and publisher. Prefer this over general web search when you need structured, machine-readable academic metadata rather than a full-text search across papers.
Side effects
- DOI not found in Crossref database returns 404
- Malformed or missing DOI parameter causes request failure
- Some papers may have incomplete metadata (e.g. missing cited-by count or authors)
- Network or upstream Crossref API timeout
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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