fastendpoints

Generate FastEndpoints endpoint classes, DTOs, and validators for .NET projects.

Updated Aug 23, 2026

Search Tags:#validation #dotnet #swagger #C##api-design #endpoint-patterns #fastendpoints

Ready to run

npx skills add https://github.com/satish-krishna/sigil --skill fastendpoints

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: fastendpoints
Source: https://github.com/satish-krishna/sigil/tree/main/.claude/skills/fastendpoints
Command: npx skills add https://github.com/satish-krishna/sigil --skill fastendpoints

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

FastEndpoints patterns help developers build focused, validated API endpoints with minimal boilerplate, ensuring consistency across services.

Core Features & Use Cases

Built-in validation, mapping, and pre/post-processing for endpoints
Automatic Swagger/OpenAPI documentation generation
Clear separation of concerns: endpoints, services, validators, and error handling
Ideal for creating new API endpoints, enforcing standards, and enabling testable code patterns

Quick Start

Create your first endpoint using the provided FastEndpoints patterns and templates.

Frequently Asked Questions about fastendpoints

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I build validated API endpoints in C# with minimal boilerplate?▼

Build validated C# API endpoints with minimal boilerplate by applying the FastEndpoints pattern, which structures endpoint classes, DTOs, and validators. This ensures consistent validation and error handling across backend services.

What is the FastEndpoints pattern for .NET API design?▼

The FastEndpoints pattern is an API design approach for .NET that enforces a clear separation of concerns. It structures endpoints, services, and validators individually to create cohesive, testable code with built-in validation and automatic Swagger generation.

Do I need a pre-configured .NET project to use FastEndpoints patterns?▼

Yes, you need a .NET project already configured with FastEndpoints. The patterns and templates provided require this existing setup to properly generate endpoint classes, DTOs, and cohesive error handling across your backend services.

How does FastEndpoints handle Swagger OpenAPI documentation generation?▼

FastEndpoints handles Swagger OpenAPI documentation generation automatically. By structuring your API endpoints, DTOs, and validators according to the recommended pattern, the required Swagger documentation is generated without requiring manual configuration.

What's the best way to enforce consistent error handling across .NET endpoints?▼

The best way to enforce consistent error handling across .NET endpoints is using the FastEndpoints pattern. It provides templates for cohesive error handling and standardized pre/post-processing, ensuring all backend services maintain identical validation standards.

Can I separate endpoints, services, and validators in my C# API design?▼

Yes, you can separate endpoints, services, and validators in your C# API design by following the FastEndpoints pattern. This structure enforces clear separation of concerns, making your API endpoints highly testable and maintainable.