Sergey Biryukov

Since One-Face service ceased to exist, this plugin is deprecated and available for reference only.
Allows visitors to leave comments via <a href="http://one-face.ru/" rel="nofollow ugc">One-Face</a> authorization service. Shows the login block written in Flash, which fills the standard login forms using JavaScript.

One-Face Comments

Allows visitors to leave comments via One-Face authorization service.

Matthias Pfefferle

Will Norris

OpenID is an <a href="http://openid.net/" rel="nofollow ugc">open standard</a> that allows users to authenticate to websites without having to create a new password. This plugin allows users to login to their local WordPress account using an OpenID, as well as enabling commenters to leave authenticated comments with OpenID. The plugin also includes an OpenID provider, enabling users to login to OpenID-enabled sites using their own personal WordPress account. <a href="https://wordpress.org/plugins/xrds-simple/" rel="ugc">XRDS-Simple</a> is required for the OpenID Provider and some features of the OpenID Consumer.
Developer documentation, which includes all of the public methods and hooks for integrating with and extending the plugin, can be found <a href="http://wiki.diso-project.org/wordpress-openid-api" rel="nofollow ugc">here</a>.

OpenID

Allows WordPress to provide and consumer OpenIDs for authentication of users and comments.

One-Face Comments vs OpenID