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SiteCheck Web Intel – Crossref Scholarly Search
x402
SiteCheck Web Intel – Crossref Scholarly Search 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).
Searches Crossref's public REST API for scholarly records, returning DOI, title, type, container, year, authors, and link for matching works.
Price / call$0.002
Success—
StatusUnknown
How this service works
Crossref works search (public REST API, no key): DOI, title, type, container (journal or book), year, authors and link for matching scholarly records. Metadata only; abstracts are not always present in Crossref.
Output
A list of matching scholarly records from Crossref, each containing: DOI, title, publication type (e.g. journal-article, book), container name (journal or book series), publication year, list of authors, and a direct link to the work. Abstracts are not guaranteed to be present.
Example use cases
Citation lookup for research report
“Find me 5 recent academic papers on climate change adaptation strategies — I need the DOIs, authors, and journal names to include as citations in my report.”
Verify publication existence by keyword
“Can you check Crossref to see if there are any peer-reviewed publications about 'long COVID neurological symptoms'? Give me the top 3 results with titles, DOIs, and publication years.”
Discover books and articles on a niche topic
“Search Crossref for scholarly works on 'urban microbiome biodiversity' — I want up to 10 results showing whether each is a journal article or book, plus the container name and author list.”
Technical details
Endpoint
GEThttps://api.webintel-api.workers.dev/api/search/crossref?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need bibliographic metadata (DOI, authors, journal, year) for scholarly literature from a broad, cross-publisher index. Prefer it over Google Scholar scraping for structured, machine-readable citation data. Ideal when you need DOIs for citation verification, reference generation, or academic research discovery without requiring full-text or abstracts.
Side effects
- Empty results if the search query matches no Crossref records
- Rate limiting from the upstream Crossref public API during high-traffic periods
- Incomplete metadata if a record in Crossref lacks fields like year or authors
- Query too short or too long (must be 1–200 characters) returns a validation error
- rows parameter out of range (must be 1–20) may cause an error or be clamped
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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