IdentityServer is a framework and a hostable component that allows implementing single sign-on and access control for modern web applications and APIs using protocols like OpenID Connect and OAuth2. It supports a wide range of clients like mobile, web, SPAs and desktop applications and is extensible to allow integration in new and existing architectures.

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IdentityServer is a project of the independent Thinktecture associates Dominick Baier and Brock Allen, and is maintained separately from Thinktecture AG. You can find out more about our associates' offerings in the IdentityServer space at