If you access library resources using saved links or bookmarks with "oca.ucsc.edu" in the URL or use the Zotero Browser Extension and are getting proxy errors, please read on—this message is for you!

The Off-Campus Access Proxy Login service (OCA) was discontinued on December 31, 2024. This service has been replaced by OpenAthens, a new authentication system that uses CruzID. Links in UC Library Search were updated last summer, so if you're accessing resources directly through UC Library Search, you're all set.

However, if you have any saved links or bookmarks that have "oca.ucsc.edu" in them, you will need to update these links to ensure continued access. You can easily do this using the Athenizer tool.

If you have configured the OCA proxy in your Zotero Browser Extension, you will need to remove this proxy. See the instructions for updating the Zotero extension at the bottom of our Proxy Errors & Permalinks page.

For more details, including instructions on how to update your links, visit our Online Access from Off-Campus page.