Top 20 NuGet owin Packages

NWebsec middleware for OWIN applications. NWebsec helps you set important security headers and detect potentially dangerous redirects. See project website for documentation.
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...
A SAML2 Owin middleware, compatible with ASP.NET Identity for external logins.
Seamlessly adds a Swagger to WebApi projects!
OWIN AES data protector provider
An open architecture for interoperable OWIN middleware
Adds additional OAuth providers for OWIN to use with ASP.NET
Adds additional OAuth providers for OWIN to use with ASP.NET
Google Recaptcha middleware for OpenIdConnect (IdentityServer)
Configure Owin Framework middleware using Urchin
User interface for managing groups, roles and permissions for the Owin Framework authorization middleware
Adds additional OAuth providers for OWIN to use with ASP.NET
Middleware that enables an application to use cookie based authentication, similar to ASP.NET's forms authentication.
Middleware that enables an application to use Microsoft's technology for authentication.
Middleware that enables an application to support any standard OAuth 2.0 authentication workflow.
Middleware that enables an application to use OpenIdConnect for authentication.
Extension for Ninject providing integration with ASP.NET MVC WebAPI 2 OWIN host
OWIN IAppBuilder startup interface
Nancy extensions for OWIN hosting.
Native login throttling middleware for OpenIdConnect (IdentityServer)