Twitter API 1.1 compliant plugin that provides a function to get an array of tweets from the auth'd users Twitter feed for use in themes.
Create and Manage an OAuth 2.0 server powered by WordPress. Become a Single Sign On Provider and or resource server.
Connect applications to your WordPress site without ever giving away your password.
OAuth client plugin allows login with your google, facebook, eve online or any other OAuth account.
Zotpress displays your Zotero citations on WordPress.
Connect to Gmail SMTP server to automatically send email from your WordPress site. Configure wp_mail() to use SMTP with OAuth 2.0 authentication.
WP Instagram widget is a no fuss WordPress widget to showcase your latest Instagram pics.
Add Google Calendar events to your WordPress site in minutes. Beautiful calendar displays. Mobile responsive.
Mail Bank easily configures sending emails and logging them from your WordPress site using your preferred PHPMailer or SMTP server.
Postman is a next-generation SMTP Mailer, software that assists in the delivery of email generated by your WordPress site.
Easily integrate your Gravity Forms with HubSpot forms! Match up field-for-field so you can harness the power of HubSpot.
Simple secure login and user management for WordPress through your G Suite / Google Apps domain
(uses secure OAuth2, and MFA if enabled)
Allows users to login or register by authenticating with an existing Google, Facebook, LinkedIn, Github, Reddit (and more!) account via OAuth 2.0.
Authorizer limits login attempts, restricts access to specified users, and authenticates against external sources (e.g., Google, LDAP, or CAS).