OpenUI Forge — C#

Build generative UI apps with a React frontend + C# backend. Streams OpenAI API responses directly via an ASP.NET Core Minimal API (.NET 10 LTS) using HttpClient.

Activation Triggers

• "openui csharp", "openui c#", "openui dotnet", "openui aspnet"
• "generative ui csharp", "c# streaming ui backend", "asp.net core openui"

Prerequisites

• Node.js >= 22 (24 LTS recommended) + React >= 18.3.1 (19+ recommended) (frontend)
• .NET SDK 10.0 (backend; .NET 10 is the current LTS, supported until Nov 2028. .NET 8 LTS also works but reaches end of support Nov 2026.)
• OPENAI_API_KEY environment variable set

Quick Start