- DOI Metadata API


What is API for DOI Metadata?



API for DOI Metadata is also called Crossref Unified Resource API, which allows anybody to search and retrieve content information associated with DOIs registered in

As of April 9, 2020, database has about 112.5 million DOI records.

Technical information on API:

Base URL:
  /works - for journal articles, conference proceedings, books, components, etc
  /funders - for funders in the Funder Registry
  /members - for Crossref members (mostly publishers)
  /types - for work types
  /licenses - for licenses applied to works in Crossref metadata
  /journals - for journals in the Crossref database

Here is an example of API request and response:

fyicenter$ curl

  status: "ok",
  message-type: "work-agency",
  message-version: "1.0.0",
  message: {
    DOI: "10.1037/0003-066x.59.1.29",
    agency: {
      id: "crossref",
      label: "Crossref"

For more information, see Crossref Unified Resource API Document. API - /types for DOI Types - DOI Metadata Lookup DOI Database

⇑⇑ DOI - Frequently Asked Questions

2022-10-08, 301👍, 0💬