Crossref

Formatted citations and publication details

Find scholarly works and format citations from their registered metadata.

Get citation

Get citation

Get a formatted citation and publication details for the best-matching Crossref work by title or DOI. Optional author and year help choose among similar works; citations reflect the metadata deposited with Crossref.

Your information

Work

Paper or book title or DOI, for example The Structure of Scientific Revolutions or 10.1038/nrd842.

YearOptional

Publication year to help select a work, for example 1996.

StyleOptional

Citation style, for example mla.

AuthorOptional

Author to help select a work, for example Thomas S. Kuhn.

1 credit per completed run

The same inputs also work from your code or an AI assistant. See For developers.

Example results

The Structure of Scientific Revolutions

Kuhn, T. S. (1996). The Structure of Scientific Revolutions. University of Chicago Press. https://doi.org/10.7208/chicago/9780226458106.001.0001

Year: 1,996
Work type: book
Journal or publisher: University of Chicago Press

Open DOI

About the Crossref tool

Get citation returns citation and publication details for a title or DOI; optional author and year help match the work.

Built from crossref.org and citation.doi.org. Last checked Sep 29, 2026.

Actions

Get citation

1 credit

Uses Crossref and citation.doi.org.

What you provide

Field	Type	Required	Description
Work`work`	Text	Required	Paper or book title or DOI, for example The Structure of Scientific Revolutions or 10.1038/nrd842.Example: The Structure of Scientific Revolutions
Year`year`	Number	Optional	Publication year to help select a work, for example 1996.Example: 1996
Style`style`	Text	Optional	Citation style, for example mla.Example: Apa
Author`author`	Text	Optional	Author to help select a work, for example Thomas S. Kuhn.Example: Thomas S. Kuhn

What you get

Field	Type	Description
DOI`doi`	Text	Example: 10.7208/chicago/9780226458106.001.0001
Type`type`	Text	Example: Book
Year`year`	Number	Example: 1996
Issue`issue`	Text	Example: 7
Pages`pages`	Text	Example: 491-492
Title`title`	Text	Example: The Structure of Scientific Revolutions
Volume`volume`	Text	Example: 1
Authors`authors`	List
Citation`citation`	Text	Example: Kuhn, T. S. (1996). The Structure of Scientific Revolutions. University of…
DOI Link`doi_link`	Text	Example: https://doi.org/10.7208/chicago/9780226458106.001.0001
Journal or Publisher`journal_or_publisher`	Text	Example: University of Chicago Press

Example result

For Work: The Structure of Scientific Revolutions, Year: 1996, Style: Apa, Author: Thomas S. Kuhn

JSON

{
  "doi": "10.7208/chicago/9780226458106.001.0001",
  "type": "book",
  "year": 1996,
  "issue": null,
  "pages": null,
  "title": "The Structure of Scientific Revolutions",
  "volume": null,
  "authors": [
    "Thomas S. Kuhn"
  ],
  "citation": "Kuhn, T. S. (1996). The Structure of Scientific Revolutions. University of Chicago Press. https://doi.org/10.7208/chicago/9780226458106.001.0001",
  "doi_link": "https://doi.org/10.7208/chicago/9780226458106.001.0001",
  "journal_or_publisher": "University of Chicago Press"
}

For developers

Call it from your code with one request. Change the values in input to run it on new data. To get an API key, open Developers at the bottom of Studio, turn on Developer mode and go to API keys.

cURL

curl 'https://api.fous.com/v1/query' \
  --fail-with-body --silent --show-error --max-time 180 \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H 'Content-Type: application/json' \
  --data-raw '{
  "api": "@crossref",
  "visibility": "public",
  "operation": "get_citation",
  "version": 1,
  "input": {
    "work": "The Structure of Scientific Revolutions",
    "year": 1996,
    "style": "apa",
    "author": "Thomas S. Kuhn"
  },
  "response": {
    "format": "json"
  }
}'

What you can do with it

Create formatted citations for papers and books
Look up publication details from a DOI
Match a work using its title, author, and year
Format citations in a chosen style

Questions about Crossref

Can I run it with my own inputs?

Yes. Change the inputs in Studio and press Run, or send new inputs from your code, or ask a connected AI assistant.

Can I call this Crossref tool as an API?

Yes. Send a POST request to /v1/query with your Fous API key and the inputs, and get JSON back.

How much does it cost?

Each completed run costs 1 credit. Failed runs without a completed receipt are free; completed work can remain charged if delivery is interrupted. With pay as you go, a credit costs 1¢. Monthly plans cost less per credit.

Do I need a Crossref account?

No. You only need a Fous account.

How current is the data?

Fous gets the data from crossref.org when you run it. Some results are reused for up to 24 hours, and results that use your account or key are never reused. It was last verified on Sep 29, 2026.