Data as of Jul 25, 2026 · Based on 2,718,867 AI responses across 9,511 prompts · See how Parse measures this
CAS (Central Authentication Service) by Apereo Foundation is a free, open source single sign-on identity provider that provides authentication and authorization for web applications. It serves as middleware bridging applications and authentication sources, offering features like session management, single logout, and passwordless multi-factor authentication, and is used across industries from education to Fortune 500 corporations.
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