Is there a node.js implementation of an OpenID consumer?

Looking for an OpenID consumer in node.js

It is not on this list http://openid.net/developers/libraries/

Is there one?

I've written OpenID for node.js and shared the code at https://github.com/havard/node-openid. It is a fully OpenID 2.0 (and partially OpenID 1.1) compliant Relying Party.

For more information on the library, you can also read the announcement blog post.

UPDATE: As of 2011-09-04, the library is a fully OpenID 1.0/1.1 compliant Relying Party as well.

Maybe Passport will be good for your needs:

passport (copied from their website)

Passport is authentication middleware for Node.js. Extremely flexible and modular, Passport can be unobtrusively dropped in to any Express-based web application. A comprehensive set of strategies support authentication using a username and password, Facebook, Twitter, and more.

Features:

• 140+ authentication strategies
• Single sign-on with OpenID and OAuth
• Easily handle success and failure
• Supports persistent sessions
• Dynamic scope and permissions
• Pick and choose required strategies
• Implement custom strategies
• Does not mount routes in application
• Lightweight code base

Everyauth is on the list at http://openid.net/developers/libraries/ but it is listed under "everyauth" instead of "Javascript" or "node.js".

It claims to be a "node.js auth package (password, facebook, & more) for Connect and Express apps" and claims to work with ~30+ services, including OpenID. Facebook, Twitter, Google, LinkedIn, DropBox, Tumblr, GitHub, and a bunch of others.

It is being actively developed, judging from the recent github commits for June 2013.