xpac
Access 192M new works in OpenAlex
On November 4, 2025, we added 192M new works to OpenAlex as part of a rewrite codenamed Walden. This expansion pack (xpac for short) includes all of DataCite, plus thousands of institutional and subject-area repositories.
For more information on xpac, see the Walden release notes.
You can access xpac by adding the include_xpath=true parameter to any entity endpoint call. Here's an example:
Get all works, including those in xpac:
https://api.openalex.org/works?include_xpac=true
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