What Chorus Does

  • Provides a sustainable solution for government agencies, publishers, research officers, librarians, and authors to make publicly funded research more accessible.
  • Makes research outputs easily and permanently discoverable, accessible, and verifiable by anyone in the world.
  • Focuses on five core services: Identification, Discovery, Access, Compliance and Preservation.

Monitor your Open Access output and compliance with our simple and affordable dashboard.
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How Chorus Works


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CHORUS leverages existing infrastructure enabling sustainable, affordable, and transparent open access to content reporting on funded research.

By integrating services and open APIs, CHORUS optimizes funder identification, content discovery, long-term accessibility, compliance monitoring, and dashboard reporting.

Powered by the Crossref Open Funder Registry and other open technologies, CHORUS is interoperable with other public-access delivery solutions, agency search portals, publisher platforms, and scholarly repositories and archives

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About Chorus


CHORUS is a simple, affordable, community-developed solution for monitoring open access to content and datasets reporting on funded research.

CHORUS minimizes open access compliance burdens while increasing access to content and data in supporting funder mandates.

CHORUS provides the necessary metadata infrastructure and governance enabling a smooth, low-friction interface between funders, authors, institutions, and publishers in a distributed network environment.

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Current Articles

Total Articles Monitored

The chart represents the growth in the number of Publisher Member articles identified as reporting on funded research that have been monitored by CHORUS since June 2014.

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Chorus Dashboard Highlights

DOIs/Articles Description
687,767 reported in CHORUS dashboard
221,372 publicly accessible today

The top number is the current count of Member articles that CHORUS monitors and audits for open access status, reuse licenses, and archiving arrangements. The bottom number is how many are openly accessible today.

Research funders working with CHORUS as part of their open or public-access plans, pilot projects, or linking arrangements.

  • Smithsonian Institution
  • US Department of Energy
  • Science for a changing world
  • National Science Foundation
  • United States Department of Agriculture
  • Office of the Director of National Intelligence
  • Defense Technical Information Center
  • US Aid
  • National Institute of Standards and Technology
  • Japan Science and Technology Agency
CHORUS Participants  |  View Complete Members List

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