Best OpenId API for ASP.NET MVC application

Question

I am developing an ASP.NET MVC application and I want to use OpenId.

What is the best option?

DotNetOpenId
RPX
Other???

Does anyone know what StackOverflow uses? Is the Login UI custom-developed, or provided by an API/service?

This question is a bit old now, relative to the pace of innovation in this area. SO doesn't favour duplicate questions, otherwise I'd re-ask this one, looking for a contemporary set of answers. — Drew Noakes
– Drew Noakes, Commented Aug 2, 2010 at 13:38

Shawn Mclean · Accepted Answer · 2010-12-20 04:06:20Z

49

We use the excellent DotNetOpenId library here on Stack Overflow:

http://code.google.com/p/dotnetopenid/

now moved to:

http://www.dotnetopenauth.net/

Our original login UI was provided by ID Selector, but we've since rolled our own minimalist version.

edited Dec 20, 2010 at 4:06

Shawn Mclean

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answered Feb 9, 2009 at 1:40

Jarrod Dixon

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5 Comments

Jarrod Dixon Over a year ago

Well, looks like we need to upgrade our ID Selector to RPX!

Jedi Master Spooky Over a year ago

Yes looks like it. Let us know how it goes.

Andrew Arnott Over a year ago

-1 on RPXNow. blog.nerdbank.net/2009/01/why-using-rpxnow-is-bad-idea.html

Portman Over a year ago

I'm actually about to migrate from RPX back to openid-selector. The RPX servers are down about 5% of the time that someone tries to register.

Drew Noakes Over a year ago

Would you modify your answer, nearly a year on? Does this information still hold true today?

John Sheehan · Accepted Answer · 2009-02-09 05:53:05Z

17

I'll second the recommendation for DotNetOpenId and add a recommendation for openid-selector (open source version of idselector)

answered Feb 9, 2009 at 5:53

John Sheehan

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3 Comments

Nikita Ignatov Over a year ago

Thanks! Just tried it, Exellent compaird to the idselector.com's. Specially if you do need to change the look or language :P

John Sheehan Over a year ago

Because it was the first. I believe there are better alternatives now, but I don't know what they are. I use RPXnow whenever possible.

Maksym Kozlenko Over a year ago

Here is an example how to do it: weblogs.asp.net/haithamkhedre/archive/2011/03/13/…

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