Proton does not currently offer CalDAV or CardDAV services, however there is a highly modular platform used by many large companies that allows for simple integration into third party authentication services: Baikal, backed by sabre/dav.

Does Proton have a published API that could be leveraged for authentication? sabre/dav already has a plugin for IMAP, but of course that can't put targeted to Proton. Many services offer access to their IDP these days, I'm wondering if there is a service like this from Proton as well?

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[–] 1 point 2 years ago (3 children)

What's caldav and carddav used for?

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  • [–] 1 point 2 years ago (2 children)

    Usually sync calendar and contacts.

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