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UnpaywallUnpaywall
Unpaywall is an Open Access database, harvesting content from more than 25,000 Gold OA journals, hybrid journals, institutional repositories, and disciplinary repositories.
The integration with Unpaywall supports researchers by expanding the range of available import data sources with an OA database indexing over 25 million publications, and providing researchers access to online version of a record.
This import source is available as of 5.19.0 of Pure
Configure
To enable Unpaywall as an import source, go to Administrator > Research Output > Import Sources

- URL. Leave the default value.
- Email. Basically any mail can be used. No registration is required.
- Accept repository URLs.
- If set to False, links from the source data to repositories are ignored.
- If set to True, links will be added to the metadata on the imported record.
Use
To search and import content, go to Add content and in Research Output > Import from online sources select ‘Unpaywall’

Search for content using the search bar. It is possible to search by the DOI of the Research Output.

Mapping of content
On import the mapping below will define how types and metadata fields from Unpaywall are mapped to Pure.
Unpaywall to Pure type mapping
Types in Unpaywall are described here: https://api.crossref.org/types
Unpaywall to Pure data mapping
Data Format: https://unpaywall.org/data-format
See details…
Unpaywall field | Pure field |
genre | Maps to above type map and defines the content type in Pure |
title | Title |
year | Publication year |
doi | Source id (External id) |
doi | DOI |
doi_url | DOI / Link |
best_oa_location > url | Link |
publisher | Publisher |
z_authors > orcid | Author orcid id |
z_authors > given + family | Author first name and last name |
z_authors > affiliation | Author organizations |
best_oa_location > version | Publication Status |
best_oa_location > oa_locations (version = publishedVersion) > url |
Full text file link |
best_oa_location > oa_locations (version = publishedVersion) > url | Full text file title |
best_oa_location > oa_locations (version = publishedVersion) > license |
Full text file license |
oa_status | DOI status |
published_date | Publication date |
journal_name | Journal title |
journal_issns | Journal issns |
More information
Site: https://unpaywall.org/
API: https://unpaywall.org/products/api
FAQ: https://unpaywall.org/faq
Terms of Service: https://unpaywall.org/legal/terms-of-service
Example: https://api.unpaywall.org/v2/10.1038/nature12373?email=YOUR_EMAIL
Published at April 07, 2025