API Endpoint Scaffolder Skill for Claude

Generate REST API endpoints with proper structure, validation, error handling, and types. Use when creating new API routes, endpoints, or backend services.

639 tokens

context cost

the whole folder, loaded on every use

files

instructions only

copies elsewhere

how many repositories repackaged it

235

stars on the repo

on the repository, not the skill itself

Install

one command, takes just this skill from the repository

npx skills add https://github.com/OneWave-AI/claude-skills --skill api-endpoint-scaffolder

The instruction itself

6 sections, as written by the author

API Endpoint Scaffolder

Instructions

When creating a new API endpoint:

Identify the framework (Express, Next.js, FastAPI, etc.)
Determine HTTP method (GET, POST, PUT, PATCH, DELETE)
Define request/response types
Implement with best practices

Templates

Next.js App Router (TypeScript)

// app/api/[resource]/route.ts
import { NextRequest, NextResponse } from 'next/server';
import { z } from 'zod';

const RequestSchema = z.object({
  // Define your schema
});

export async function GET(request: NextRequest) {
  try {
    const { searchParams } = new URL(request.url);
    // Implementation
    return NextResponse.json({ data }, { status: 200 });
  } catch (error) {
    console.error('[API] Error:', error);
    return NextResponse.json(
      { error: 'Internal server error' },
      { status: 500 }
    );
  }
}

export async function POST(request: NextRequest) {
  try {
    const body = await request.json();
    const validated = RequestSchema.parse(body);
    // Implementation
    return NextResponse.json({ data }, { status: 201 });
  } catch (error) {
    if (error instanceof z.ZodError) {
      return NextResponse.json(
        { error: 'Validation failed', details: error.errors },
        { status: 400 }
      );
    }
    return NextResponse.json(
      { error: 'Internal server error' },
      { status: 500 }
    );
  }
}

Express (TypeScript)

import { Router, Request, Response, NextFunction } from 'express';
import { z } from 'zod';

const router = Router();

const CreateSchema = z.object({
  // Define schema
});

router.post('/', async (req: Request, res: Response, next: NextFunction) => {
  try {
    const data = CreateSchema.parse(req.body);
    // Implementation
    res.status(201).json({ success: true, data });
  } catch (error) {
    next(error);
  }
});

export default router;

Best Practices

Always validate input using Zod, Yup, or similar
Use proper HTTP status codes:
200: Success
201: Created
400: Bad Request
401: Unauthorized
403: Forbidden
404: Not Found
500: Server Error
Log errors but don't expose internals to clients
Use consistent response format
Add rate limiting for public endpoints
Document with OpenAPI/Swagger when possible

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How to use it

Copy the folder

Take onewave-ai/api-endpoint-scaffolder from the repository into ~/.claude/skills for personal use, or into .claude/skills inside a project.

Check the name does not clash

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