Top 20 NuGet owin Packages

Enables you to use the Hawk authentication scheme for SignalR connections from .NET client. No server-side modification are required (beside taking care of the order in the OWIN pipeline => not include SignalR prior to the Hawk authentication middleware).
Microservice that generates Excel reports with http-POST request and WebAPI.
Provides HttpRequest extension methods to support Quantum Identity.
Middleware that enables an application to support MyMail OAuth authentication workflow.
Helper library with additional middleware for Owin
OWIN middleware to support Jasig CAS
Integrate Castle core logging to owin.
A lightweight framework for creating RESTful APIs
TenantCore is an OWIN Middleware that it can help to resolve tenants, a multitenancy middleware, by request's hostname for example or by any resolver. You can create your own Tenant's resolver or use the default one. The tenant can have a database connection string or any property that you need.
Creates a Windsor dependency scope per OWIN WebAPI request allowing to use a per request lifestyle component registration in a self-host environment.
An OWIN specific middleware for ImageDis. A simple image resizing server for ASP.NET.
Integrate Castle windsor to owin.
Simple owin file serving middleware.
Allows serving files from a zip file store.
Simple OWIN stateful token authentication middleware for when you want to store token in database
Pception is a library for easily collecting and storing log data and viewing it online. Pception core is a portable package to used to manage and connect the log sources and log storage.
This Owin middleware helps with serializing and formating JSON results from ASP.NET web API Hosted within OWIN server or self hosted OWIN Web API. There is also support for ASP.NET Web API without OWIN from v1.0.2.
OWIN Self-host / IIS (Helios) support for the Dotnet Microservice library
ASP.NET Core middleware to serve files for a single page application.