Nextcloud
Nextcloud is an open-source, self-hosted productivity platform offering file sync and share, collaboration, communication (Talk, Mail, Calendar, Contacts), and office (Nextcloud Office) features as a privacy-focused alternative to public cloud suites. Hosted in private datacenters or on-premises, Nextcloud is widely used by enterprises, governments, and individuals. The Nextcloud APIs include OCS REST APIs, WebDAV for file/folder operations, CalDAV/CardDAV, and an OpenAPI-described developer surface for apps and integrations.
APIs
Nextcloud OCS API
Open Collaboration Services REST API for managing shares, users, groups, capabilities, status, notifications, activities, and other Nextcloud server resources. Uses Basic Auth, ...
Nextcloud WebDAV API
WebDAV interface for files, folders, chunked uploads, trashbin, versions, comments, and search on a Nextcloud server. Provides the primary file-sync protocol used by Nextcloud d...