Single Sign-On (SSO)
You can use Abowire as a SSO provider with OAuth2 (other protocols such as SAML are available only in the Enterprise tiers).
In this constellation, your user base lives in Abowire and you authenticate all your apps against Abowire.
Setting it up is as easy as creating an Public API Key with the Callback URL set to your application. Effectively, this means that the user would start the authentication process in your app, get redirected to the Abowire Login and once authenticated, sent back to your app with a valid access token.
This process follows the standard OAuth2 Authorization Code Grant.