AuPair provides token-based authentication and versioning for Rails API applications.

A connector that integrates IAM authentication for connecting Ruby applications to Amazon Aurora DSQL clusters using the pg gem

Authentication for Rails applications

A library for Authlete Web APIs. See https://docs.authlete.com/ for details.

Authentication with auth lh api

A powerful, modern authorization plugin for Ruby on Rails featuring a declarative DSL for centralized authorization roles. Based on Declarative Authorization.

AuthorizedPersona is a rails implementation of Betterment's Persona Centric Authorization pattern

The Authorize.Net Ruby SDK is meant to offer an alternate object-oriented model of development with the Authorize.net APIs (Version 3.1). The SDK is based entirely off the name-value pair API, but performs the core payment activities (such as error handling/parsing, network communication, and data encoding) behind the scenes. Providing the end developer with this allows the developer to start integrating immediately without having to write out a mass of boiler plate code.

Works with Facebook.

Authsignal is a passwordless authentication/multifactor authentication with modern factors like passkeys

autocanary24 provides a small convenient module for blue/green and canary deployments with CloudFormation.

Easily use jQuery UI's autocomplete widget with Rails applications.

Fill in your brazillian addresses automagically

The Autodiscover Service provides information about a Microsoft Exchange environment such as service URLs, versions and many other attributes.

Filters for `auto_html` gem

If you like the ‘Module#autoload’ feature of the Ruby Core library, you may have wished for Autoloaded. It eliminates the drudgery of handcrafting an `autoload` statement for each Ruby source code file in your project. It also avoids the limitations of rigid convention-driven facilities such as those provided by the ActiveSupport RubyGem. Autoloaded assumes, but does not enforce, `CamelCase`-to-`snake_case` correspondence between the names of constants and source files. You can combine conventions, even putting multiple autoloaded constants in a single source file.

Automatic Foreign Key automatically generates foreign-key constraints when creating tables or adding columns. It uses SQL-92 syntax and as such should be compatible with most databases that support foreign-key constraints.

Vendor your gem's dependencies in retro style.

Autoreload automatically reloads library files when they have been updated. It is especially useful when testing stateless services such as web applications.

A transparent code reloader.