Minimal API VS FastEndpoints in C#

FastEndpoints represent a high-performance alternative to Minimal APIs in.NET. The building of APIs becomes structured yet simple and swift as with Minimal APIs. This article will cover the basics of developing a simple REST API with the use of FastEndpoints in C#.

Why Use FastEndpoints?

Following are some of the benefits offered by FastEndpoints:

• Performance: Higher compared to regular MVC controllers
• Type-Safety: Request and response models strongly typed
• Declarative Validation: Automatic request validation.
• Organized Code: Encourages Clean Project Structure.

FastEndpoints vs Minimal API

Both FastEndpoints and Minimal APIs are designed to build lightweight and high-performance APIs in.NET. However, they differ in structure, features, and approach. Here’s a comparison that will help you choose the right one for your project.

Minimal API Example

var builder = WebApplication.CreateBuilder(args);
var app = builder.Build();

app.MapPost(“/users”, (User user) => Results.Ok(user));
app.Run();

Pros:
✅ Simple and quick to set up.
✅ Good for small applications or prototypes.

Cons:
❌ No built-in request validation.
❌ Becomes harder to maintain as the project grows.