Top 20 NuGet attribute Packages

NServiceBus Messages and Commands Attribute Routing Contracts
Adds helpers to easily bootstrap into a webjobs or azure functions application by just using the correct extension method. This adds additional configuration, logging and service injections by convention.
Contains code generator to provide basic implementations for some interfaces. See project site for installation instructions and more details.
Code generator for [FlagsEnumeration]-decorated types. Automatically generates bitwise operator overloads corresponding with your derived Enumeration assets. This package references all required and recommended analyzer packages. See project site for installation instructions and more details.
Package Description
UnityExportAttribute class is automatically registered in the UnityContainer. And inteception configuration is attribute.
With Interaction Lib you can wire up most common ajax UI interactions with as few as 2 - 3 attributes right in your markup with no additional javascript. Also provides markup for wiring and configuring other jQuery/jQueryUI plugins. Provides support for unobtrusive configurations.
Rinky lets you define RESTful links using attributes on action methods in ASP.NET Web API WebHost.
Restcoration adds attributes that enable classes to be used for easily fetchable rest requests, in a domain-driven fashion.
Enables support for using attribute routing with Web API 2 in Sitecore 7.5 and Sitecore 8
Enables support for using attribute routing with Web API 2 in Sitecore 7.5 and Sitecore 8. This package implements the source in your project so you can modify it if needed.
Reflection Helper with Caching and Attribute support
An authrorize attribute that lets you use an array of roles or users rather than creating a comma-delimited string
An authrorize attribute that lets you use an array of roles or users rather than creating a comma-delimited string
using AutoMapper by attribute
Defines `[Record]` attribute and `Features` flags enum. See project site for more details.
Provides the [FlagsEnumeration] attribute for use when signaling when bitwise operators and so forth are to be auto generated at build time.
Library that enables the user to validate the most frequently used .Net framework attributes.
[Decimal(p, s)] attribute and model builder extension for EntityFramework Core.
The build-time development dependency that generates code for projects consuming Code Generation attributes.