Top 20 NuGet Packages depending on Microsoft.Owin

Total dependencies: 900

Google Recaptcha middleware for OpenIdConnect (IdentityServer)
Weibo OAuth2.0 providers for ASP.NET 4.5
OAuth2.0 Providers for ASP.NET 4.5
Allows to use POCO Controllers concept with WebAPI 5.2.3. Also, uses MEF to manage dependencies.
Patched version of Microsoft.Owin.Security.Cookies to backport https://github.com/aspnet/AspNetKatana/issues/58 into 3.0.1
Web Application
OWIN middleware to support Jasig CAS Enhanced
ASP.NET Web API adapter for OWIN IoC container adapter
MicroserviceAnalytics.OWIN Class Library
Falcor.NET server OWIN middleware for hosting a web-based Falcor datasource (router)
Yet another ALT.MVC framework for .NET. Use this package to host it in an ASP.NET application.
Support hosting ZKWeb on Owin. For more information please visit project site.
An ASP.NET library enabling easy time traveling at runtime.
WebSharper Sitelets module for Owin 1.0
Library for .NET developers to integrate with workspaces
QQ OAuth For ASP.NET.
Baidu OAuth For ASP.NET.
Some useful helper classes for simplifying testing of ASP.NET Web Api 2 using Owin test server