Guardian vs OAuth.io: What are the differences?
Developers describe Guardian as "Remove the OAuth dance with one request". Avoid dealing with OAuth logic in your code, and spend more time creating your product. Guardian reduces the OAuth footprint in your code to a single request. Built with modularity in mind, Guardian leverages plugins to handle OAuth flows, should you encounter a flow that Guardian doesn't handle, create a small flow plugin to do so and carry on. Guardian comes with 5 pre-made plugins that cover 99% of OAuth services. On the other hand, OAuth.io is detailed as "OAuth That Just Works". OAuth is a protocol that aimed to provide a single secure recipe to manage authorizations. It is now used by almost every web application. However, 30+ different implementations coexist. OAuth.io fixes this massive problem by acting as a universal adapter, thanks to a robust API. With OAuth.io integrating OAuth takes minutes instead of hours or days.
Guardian and OAuth.io belong to "User Management and Authentication" category of the tech stack.
Guardian is an open source tool with 628 GitHub stars and 42 GitHub forks. Here's a link to Guardian's open source repository on GitHub.