Microsoft.AspNetCore.OpenApi
Provides APIs for annotating route handler endpoints in ASP.NET Core with OpenAPI annotations. This package was built from the source code at https://github.com/dotnet/aspnetcore/tree/d4eca39c3fc1944b2c6431bf6b22036bdb176c0d
Install
dotnet add package Microsoft.AspNetCore.OpenApi --version 9.0.0-preview.3.24172.13
Install-Package Microsoft.AspNetCore.OpenApi -Version 9.0.0-preview.3.24172.13
<PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="9.0.0-preview.3.24172.13" />
Frameworks
Dependencies
Adoption guide
Teams staying close to first-party ASP.NET Core primitives and minimal external framework layering.
This version is marked prerelease. Validate its API and upgrade path before production use.
Compatibility metadata lists 1 target framework; confirm the exact target used by your application.
How to read this guidance
Sources: published NuGet v3 registry metadata and explicit NuBrowse editorial guides. Refresh: package metadata is refreshed from NuGet when the page loads. Limit: this is not a security, legal or compatibility guarantee; validate the selected version in your project.
Useful next steps
Move from package metadata to a concrete selection or review workflow.