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from $2.00 / 1,000 paper results

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Academic Papers Search (unofficial PubMed, arXiv, Crossref)

Try for free

Search PubMed, arXiv, and Crossref for scholarly papers and return one de-duplicated row per work. OpenAlex is optional with your own API key. Unofficial; not affiliated with NCBI, arXiv, Crossref, or OpenAlex.

Pricing

from $2.00 / 1,000 paper results

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Developer

Olalekan Johnson

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Bookmarked

Total users

Monthly active users

6 days ago

Last modified

Categories

Other

Source

source

Required

Source that supplied the primary id: pubmed, arxiv, crossref, or openalex.

Type:string

Example:

pubmed

Options:

pubmedarxivcrossrefopenalex

Identifier

Required

PMID, arXiv id, DOI, or OpenAlex work id, matching source.

Type:string

Example:

38765432

Title

title

Required

Work title.

Type:string

Example:

Example title returned by the search

Authors

authors

Required

Author names in source order. At most 100 names are kept.

Type:string[]

Example:

[
  "Ada Lovelace",
  "Alan Turing"
]

Abstract

abstract

Optional

Abstract text when the source license allows it. Null for PubMed, and null for Crossref works without a commercial Creative Commons license.

Type:string | null

Example:

null

Abstract status

abstractStatus

Required

included: the abstract is licensed for reuse and is in this row. omitted-copyright: an abstract may exist but was not copied. not-available: the source record had no abstract text.

Type:string

Example:

omitted-copyright

Options:

includedomitted-copyrightnot-available

Journal or venue

journal

Optional

Journal, conference, or repository venue.

Type:string | null

Example:

Example Journal

Published

publishedDate

Optional

Publication date as YYYY-MM-DD, YYYY-MM, or YYYY when the source is less specific.

Type:string | null

Example:

2024-05-01

DOI

doi

Optional

Lowercase DOI without a resolver prefix. Null when the record has no DOI. De-duplication uses this field.

Type:string | null

Example:

10.1000/example

URL

url

Required

Landing page on the primary source or the DOI resolver.

Type:string

Example:

https://pubmed.ncbi.nlm.nih.gov/38765432/

Open PDF

pdfUrl

Optional

Link to an open PDF when one is known. arXiv PDFs are always linked. Crossref PDF links are included only with a commercial Creative Commons license. OpenAlex contributes its open-access PDF. PubMed rows leave this empty.

Type:string | null

Example:

null

License

license

Optional

Creative Commons URL from a Crossref work when the work lists CC0, CC BY, CC BY-SA, or CC BY-ND. Empty for arXiv and OpenAlex rows; those abstracts are covered by the source CC0 policy described in the README.

Type:string | null

Example:

null

Also found in

alsoFoundIn

Required

Other selected sources that had the same DOI and were merged into this row.

Type:string[]

Example:

[
  "arxiv"
]

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