Visual Studio Asp.net Web Api Documentation Open

 You can install the Swashbuckle.AspNetCore NuGet package in your ASP.NET Web API project using either Visual Studio or the Package Manager Console. Here are the general steps:

Using Visual Studio:

1. Right-click on the project in the Solution Explorer and select "Manage NuGet Packages".
2. In the "Browse" tab, search for "Swashbuckle.AspNetCore".
3. Click on the "Install" button to install the package.

Using the Package Manager Console:

1. Open the Package Manager Console window in Visual Studio (Tools > NuGet Package Manager > Package Manager Console).
2. Enter the following command and press Enter:

Install-Package Swashbuckle

This command will install the latest version of the Swashbuckle.AspNetCore package in your project.

To access the Swagger documentation for an ASP.NET Web API project, you need to first configure Swagger as described in my previous answers. Once you have configured Swagger, you can access the documentation using the following URL format:

URL
http://localhost:<port>/<virtual directory>/swagger