Top 20 NuGet owin Packages
A full web server whose only dependency is Microsoft.Owin.Host.HttpListener. It can be used in-proc for super-easily stubbing 3rd party dependencies and validating.
Owin middleware to map requests for the site root to a specific page on the site
Owin Framework IIdentityStore facility that stores identity information in a database using Prius ORM
Owin middleware to cache responses that are expensive to construct and don't change between requests
Owin middleware to version static assets and cache them indefinately on the browser
Owin Framework ITokenStore facility that uses the Prius ORM to store tokens
IdentityAdmin.EntityFramework is a persistence layer for IdentityAdmin configuration data that uses EntityFramework as it's database abstraction.
OWIN middleware for doing claims transformation in OWIN/Katana applications.