DailyCred vs sso: What are the differences?

DailyCred: Everything you need to manage users for your website or app. Everything you need is included: email verification, password resets, session cookies, and all the UI you need for sign in, and sign up. Skip all this work and get running instantly. If you already have a sign-in system, DailyCred sits side-by-side with the full power of user APIs and dashboards; sso: Buzzfeed's single-sign-on authentication proxy. The authentication and authorization system BuzzFeed developed to provide a secure, single sign-on experience for access to the many internal web apps used by our employees.

DailyCred and sso can be primarily classified as "User Management and Authentication" tools.

sso is an open source tool with 2.11K GitHub stars and 109 GitHub forks. Here's a link to sso's open source repository on GitHub.