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Research Paper Search (Crossref)
x402
Research Paper Search (Crossref) is a paid API for AI agents from bess-x402.onrender.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-30).
Search published academic research papers and articles across all publishers via Crossref, returning title, authors, journal, year, DOI, citation count, and abstract.
Price / call$0.002
Success—
StatusUnknown
How this service works
Search published research papers and articles across all publishers (Crossref): title, authors, journal, year, DOI, citation count and abstract, by relevance, date or citations. Use to find and cite sources.
Output
Returns a list of academic papers matching the query, each containing title, authors, journal name, publication year, DOI, citation count, and abstract. Results can be sorted by relevance, date, or citation count, with up to 50 results per call.
Example use cases
Literature review for a research paper
“Find me the 20 most relevant academic papers on CRISPR gene editing published recently — I need the title, authors, journal, DOI, and abstract for each so I can build my literature review.”
Fact-checking with academic sources
“Search for peer-reviewed research on the health effects of ultra-processed foods and give me the top 5 results sorted by relevance, including their DOIs so I can cite them.”
Tracking highly cited work in a field
“What are the most-cited papers ever published on reinforcement learning from human feedback? Give me up to 15 results sorted by citations with titles, authors, and abstracts.”
Technical details
Endpoint
GEThttps://bess-x402.onrender.com/v1/research/papers?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to find, cite, or reference published academic research across any discipline. It's ideal for literature reviews, fact-checking with scholarly sources, or retrieving DOIs and bibliographic metadata. Prefer this over general web search when you specifically need peer-reviewed or formally published material indexed by Crossref.
Side effects
- No results returned for very obscure or misspelled queries
- Abstract field may be missing for some papers not indexed by Crossref
- Citation counts may lag behind real-time totals
- Rate limiting or timeout if the Crossref upstream API is slow
- Invalid sort parameter value returns an error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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