CarterCommunity/Carter

Health v2 · maintenance only

Flags: no_releases

Adoption not part of the score

2446 stars · 197 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Carter is a thin framework layer of extension methods over ASP.NET Core that makes building HTTP APIs more explicit and enjoyable. It adds conveniences like request validation with FluentValidation, file upload binding, form binding, and content negotiation on top of Minimal APIs.

Use cases

• build rest apis with asp.net core minimal apis
• validate incoming http requests with fluentvalidation
• handle file uploads in asp.net core
• content negotiation based on accept header
• replace nancyfx for dotnet apis
• model bind form posts to routes

When to choose

• you want a lightweight, Nancy-like API layer on ASP.NET Core Minimal APIs
• you need built-in request validation returning Problem Details responses
• you want automatic DI registration of framework components

When to avoid

• you prefer plain ASP.NET Core without extra abstractions
• you need a full-featured framework like Nancy or a microservice framework with built-in hosting
• you are not on the .NET ecosystem

Facets

framework · maturity active

web-framework routing middleware form-handling file-upload web-development backend apis dotnet cross-platform aspnet-core minimal-apis fluentvalidation content-negotiation nancy-inspired csharp web-server

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