Download Keyring from the WordPress.org Plugin Repository.
Keyring is a generalized framework for WordPress which handles authentication with, and authenticated requests to remote services. It provides a set of predefined “Services” which describe how to communicate with a collection of popular platforms, and also makes it easy for you to plug into that framework and define your own Services for other systems.
Written as a plugin for WordPress, Keyring may be run in “headless” mode to provide completely white-labeled authentication/communication functionality, or with a simple UI to allow users to manage their connections. On its own, Keyring does not “do” anything useful for an end user. It is built purely with the developer in mind, to make your life easier when integrating with other services. Using Keyring means you no longer need to care about OAuth or HTTP Basic, or how to sign requests or anything else — you request a secure connection from Keyring and if one is available, you will be provided with a simple, standard way of talking to that service. If there is no connection available, then the user will be taken through any authorization process and then the finalized connection will be returned to your plugin upon completion.
In this documentation, we’ll look at the architecture of Keyring, how the pieces work together and how you can extend Keyring by writing your own Services and Token Stores, plus implementing it as the authentication/communication layer in your own plugins/themes.