Microsoft.AspNetCore.OpenApi 9.0.10

Prefix Reserved
.NET 9.0 This package targets .NET 9.0. The package is compatible with this framework or higher.
There is a newer prerelease version of this package available.
See the version list below for details. 
dotnet add package Microsoft.AspNetCore.OpenApi --version 9.0.10
                    


                    

                
NuGet\Install-Package Microsoft.AspNetCore.OpenApi -Version 9.0.10
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="9.0.10" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="Microsoft.AspNetCore.OpenApi" Version="9.0.10" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="Microsoft.AspNetCore.OpenApi" />
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add Microsoft.AspNetCore.OpenApi --version 9.0.10
                    


                    

                
#r "nuget: Microsoft.AspNetCore.OpenApi, 9.0.10"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
#:package Microsoft.AspNetCore.OpenApi@9.0.10
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package. 
#addin nuget:?package=Microsoft.AspNetCore.OpenApi&version=9.0.10
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=Microsoft.AspNetCore.OpenApi&version=9.0.10
                    


                            Install as a Cake Tool

About

Microsoft.AspNetCore.OpenApi is a NuGet package that provides built-in support for generating OpenAPI documents from minimal or controller-based APIs in ASP.NET Core.

Key Features

  • Supports viewing generated OpenAPI documents at runtime via a parameterized endpoint (/openapi/{documentName}.json)
  • Supports generating an OpenAPI document at build-time
  • Supports customizing the generated document via document transformers

How to Use

To start using Microsoft.AspNetCore.OpenApi in your ASP.NET Core application, follow these steps:

Installation

dotnet add package Microsoft.AspNetCore.OpenApi

Configuration

In your Program.cs file, register the services provided by this package in the DI container and map the provided OpenAPI document endpoint in the application.

var builder = WebApplication.CreateBuilder();

// Registers the required services
builder.Services.AddOpenApi();

var app = builder.Build();

// Adds the /openapi/{documentName}.json endpoint to the application
app.MapOpenApi();

app.Run();

For more information on configuring and using Microsoft.AspNetCore.OpenApi, refer to the official documentation.

Main Types

The main types provided by this library are:

  • OpenApiOptions: Options for configuring OpenAPI document generation.
  • IDocumentTransformer: Transformer that modifies the OpenAPI document generated by the library.

Feedback & Contributing

Microsoft.AspNetCore.OpenApi is released as open-source under the MIT license. Bug reports and contributions are welcome at the GitHub repository.

Product Compatible and additional computed target framework versions.
.NET net9.0 is compatible.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed.  net10.0 was computed.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

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Version Downloads Last Updated
10.0.0-rc.2.25466.103 0 9/22/2025
10.0.0-rc.1.25451.107 0 9/22/2025
10.0.0-rc.1.25421.113 0 9/12/2025
10.0.0-preview.7.25380.108 0 8/11/2025
10.0.0-preview.7.25380.105 0 8/6/2025
10.0.0-preview.6.25358.103 0 7/17/2025
10.0.0-preview.6.25321.102 0 6/25/2025
10.0.0-preview.5.25280.105 0 6/2/2025
10.0.0-preview.5.25277.114 0 6/3/2025
10.0.0-preview.5.25277.101 0 5/29/2025
10.0.0-preview.4.25255.103 0 5/12/2025
9.0.10 1 9/25/2025
9.0.7 1 7/11/2025