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Microsoft.OpenApi package icon

Microsoft.OpenApi

v3.9.0

.NET models with JSON and YAML writers for OpenAPI specification

Microsoft openapinet
OpenAPI .NET
NuGet Stats Changelog
Total Downloads
1.5B
1,500,153,976
Published
Jul 15, 2026
Latest stable version

Install

.NET CLI
dotnet add package Microsoft.OpenApi --version 3.9.0
Package Manager Console
Install-Package Microsoft.OpenApi -Version 3.9.0
PackageReference
<PackageReference Include="Microsoft.OpenApi" Version="3.9.0" />

Frameworks

net8.0 .NETStandard2.0

Dependencies

System.Text.Json
net8.0
[8.0.5, )
System.Text.Json
.NETStandard2.0
[8.0.5, )