Pushbuild

Academic Papers Search - Crossref, arXiv & PubMed

Search scholarly papers across Crossref (150M+ works), arXiv and PubMed in one run. Get title, abstract, authors, affiliations, DOI, journal, date, citation count, subjects, MeSH terms and PDF links. Filter by date, sort by newest or most cited, or look up DOIs.

$0.64 per 1,000 papers

Get an API key

What it returns

Search the scholarly literature from one actor. Query Crossref (150M+ journal articles, books and proceedings), arXiv (preprints) and PubMed (biomedicine) together, and get clean, de-duplicated paper records ready for a spreadsheet or a database.

Title, abstract, authors, affiliations, DOI, publication date and year, journal or venue, publisher, type, citation count (Crossref), reference count, subjects or arXiv categories, MeSH terms and keywords (PubMed), licence, volume, issue and pages, and links to the landing page and PDF (arXiv, PubMed Central, open-access publishers).

Common uses

Literature reviews, research monitoring on a schedule, building RAG and training corpora from abstracts, competitive R&D intelligence, and finding experts by topic.

Request

POST https://api.pushbuild.com/academic-papers/run with a JSON body. Send your key in the X-API-Key header.

FieldTypeDescription
searchQuerieslist of stringsTopics or keywords. arXiv field syntax (ti:, au:, cat:) and PubMed syntax ([tiab], [au], MeSH) work for those sources.
sourceslist of stringsWhich databases to search. Results from several sources are de-duplicated by DOI. Default: ["crossref"].
doislist of stringsLook up specific papers by DOI or doi.org link.
maxResultsPerQueryintegerCap for each query in each source. Default: 100.
sortstring: relevance, newest, mostCitedResult order. Default: "relevance".
fromDatestringEarliest publication date (YYYY-MM-DD).
untilDatestringLatest publication date (YYYY-MM-DD).
openAccessOnlybooleanCrossref only: keep works that carry a licence (mostly open access). Default: false.
crossrefTypestring: journal-article, proceedings-article, book-chapter, posted-content, book, dissertation, reportCrossref only: restrict to one type of work.
maxItemsintegerMaximum items to return (1-500). Default: 100.

Example

curl -X POST https://api.pushbuild.com/academic-papers/run \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"searchQueries": ["large language models clinical"], "sources": ["crossref", "arxiv", "pubmed"], "maxItems": 20}'

Response

{"count": 20, "truncated": false, "seconds": 1.4, "items": [ { ... } ]}

Each call returns up to 500 items. Records that fail validation or are not found are flagged in the items and not charged.

Pricing

Pay only for results returned: $0.64 per 1,000 papers. No charge for errors or empty searches.

Tell us what you need built.

Questions about this API, higher volumes, or a data source you need that we don't cover yet.

hello@pushbuild.com

(617) 299-8887

Tell us about your project

A few questions so we can come back with a written scope. We reply within one business day.