Top 20 NuGet owin Packages

Middleware that enables an application to use Microsoft's technology for authentication.
WebApiThrottle message handler and action filter are designed for controlling the rate of requests that clients can make to an API based on IP address, client API key and request route. WebApiThrottle works with ASP.NET Web API hosted is IIS, Owin with IIS and Owin self-hosted.
OWIN server that enables OWIN-based applications to run on IIS using the ASP.NET request pipeline.
Middleware that enables an application to protect and validate JSON Web Tokens.
Middleware that enables an application to support the Microsoft Account authentication workflow.
Provides a set of helper types and abstractions for simplifying the creation of OWIN components.
This package contains the components to enable Cross-Origin Resource Sharing (CORS) in OWIN middleware.
Middleware that enables an application to support Facebook's OAuth 2.0 authentication workflow.
Contains middlewares to support Google's OAuth 2.0 authentication workflow.
OpenID Connect server middleware for OWIN/Katana.
OAuth2 introspection middleware for OWIN/Katana.
ASP.NET Core component for running OWIN middleware in an ASP.NET Core application, and to run ASP.NET Core middleware in an OWIN application. This package was built from the source code at https://github.com/dotnet/aspnetcore/tree/d4eca39c3fc1944b2c6431bf6b22036bdb176c0d
Access token validation middleware for JWT and reference tokens issued by IdentityServer3, based on JWT 5, Owin 4 and IdentityModel 4
This package contains OWIN middleware that handle requests for file system resources including files and directories.
Provides default infrastructure types for hosting and running OWIN-based applications.
Workaround Middleware for Katana Bug #197
OWIN/Katana hosting extensions for ASP.NET Core.
OAuth2 validation middleware for OWIN/Katana.
IT Hit WebDAV Server Context for projects that use IOwinContext.
Contains build engine plugins that allow the application to define endpoints that respond to RESTful requests