Open content in WorldCat Discovery search results

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Learn about Open Access in WorldCat Discovery.

Open Access filter

The open access content filter narrows a user's search to a subset of WorldCat.org databases known for providing open access content.

Open Access results can be filtered on the Advanced Search screen and in search filters using Filter and refine search results. The Open Access filter searches for records cataloged with the recent Open Access for URLs MARC standard. The Open Acces filter uses the op: 0 index, which returns records that contain an 856 subfield 7 that is equal to 0. Users can also manually enter op: 0 into the search bar to return these records.

See 856 Electronic Location and Access, ǂ7 Access status for more information.

The open access subset of databases from WorldCat.org include:

BioMed Central
Directory of Open Access Books (DOAB)
Directory of Open Access Journals (DOAJ)
HBO Kennisbank
Hindawi eJournals
JSTOR Open Access Books
JSTOR Open Access Journal Collection
Knowledge Unlatched
OAIster
Open Access Publishing in European Networks (OAPEN)
OpenEdition Books
OpenEdition Hypotheses
OpenEdition Revues.org
Paperity
Public Library of Science (PLOS)
Project Euclid
SciELO Journals
WorldCat Note: The selection made is based on WorldCat 506 subfield f of Unrestricted Access Online.

Open Access DOI links enhanced by Unpaywall

Users can access open content using DOI full text and open access links provided by Unpaywall. For more information see, https://unpaywall.org/faq. When enabled, DOIs will inform the Access Online action on search results, detailed records, and Course Reserves. DOIs are compared to Unpaywall data to ensure that only DOIs leading to open access content display. When a DOI leads to a downloadable PDF, a View PDF button appears on DOI links enhanced by Unpaywall. When it cannot be determined that a DOI link informed by Unpaywall leads to a PDF, a link to Access Online <insert DOI> appears. If a DOI is not present in Unpaywall, the DOI will not inform the Access Online button, but will continue to display in the Description of detailed records.

Note: If a user encounters a link from Unpaywall that does not lead to Open Access, report the link to team@impactstory.org.

Configure Open Access links

Open Access configuration is managed in OCLC Service Configuration. For more information, see Full Text and Open Access Links.