Top 20 NuGet katana Packages

LINQ to OWIN is middleware that allows you to code your Katana/OWIN web applications as a set of reactive queries using Rx (Reactive Extensions) for .NET.
Nhibernate-based persistence layer for IdentityServer3
Owin Middleware module for site vk.com (vkontakte). Working fine with mvc 5.
A series of utilities to ease networking, with the usage of asynccronous requests responses and coroutines. The documentation can be found on http://www.kendar.org/?p=/dotnet/networkhelpers. Same performance of Owin but...simpler!
Additional WalletOne OAuth2 provider for Katana (OWIN).
The TradeMe OAuth provider OWIN middleware
IdentityServer3 - Cache.Redis is a library that includes the implementation for client, scope, and user stores using Redis as distribuited cache system.
Slack OAuth provider for OWIN to use with ASP.NET 4.5
Facebook OAuth provider for OWIN to use with ASP.NET 4.5
OWIN logging extensions using LogJam
Access token requirement validation middleware for JWTs.
Google Recaptcha Owin Middleware
RingCentral OAuth provider for OWIN to use with ASP.NET 4.5
GoTo (GoToMeeting, GoToWebinar, GoToAssist) OAuth provider for OWIN to use with ASP.NET 4.5
This is Microsoft.Owin.Compression package from Katana project. This module add GZip & Deflate compression support to OWIN process.
join.me OAuth provider for OWIN to use with ASP.NET 4.5
FreeConferenceCall.com OAuth provider for OWIN to use with ASP.NET 4.5
Zoom OAuth provider for OWIN to use with ASP.NET 4.5
BlueJeans OAuth provider for OWIN to use with ASP.NET 4.5
Intercom OAuth provider for OWIN to use with ASP.NET 4.5