Api Endpoint Builder

This one scaffolds complete REST endpoints with validation, auth middleware, error handling, and consistent response formats. You get proper HTTP status codes, security checks, pagination patterns, and even doc comments. It's opinionated about structure, which is exactly what you want when spinning up CRUD operations or adding routes to an existing API. The examples cover Express and Fastify, show bcrypt for passwords, and include a testing setup with actual assertions. Saves you from reinventing validation logic and response shapes every time you need a new endpoint. Best for backend features where you want production-ready code without the boilerplate ceremony.

skills.sh installs: 150
GitHub stars: 39.4K
last updated: Jun 3, 2026

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Install

$ npx -y skills add sickn33/antigravity-awesome-skills --skill api-endpoint-builder --agent claude-code

Installs into .claude/skills of the current project.

Files

API Endpoint Builder

Build complete, reviewable REST API endpoint scaffolds with proper validation, error handling, authentication, and documentation.

When to Use This Skill

User asks to "create an API endpoint" or "build a REST API"
Building new backend features
Adding endpoints to existing APIs
User mentions "API", "endpoint", "route", or "REST"
Creating CRUD operations

What You'll Build

For each endpoint, you create:

Route handler with proper HTTP method
Input validation (request body, params, query)
Authentication/authorization checks
Business logic
Error handling
Response formatting
API documentation
Tests (if requested)

Endpoint Structure

1. Route Definition

// Express example
router.post('/api/users', authenticate, validateUser, createUser);

// Fastify example
fastify.post('/api/users', {
  preHandler: [authenticate],
  schema: userSchema
}, createUser);