Which OpenAPI versions are supported?

API Builder specifically supports OpenAPI 3.x specifications in both YAML and JSON formats.

Is authentication included in the generated code?

The generator includes TODO placeholders and structural patterns for authentication, but requires the user to implement specific logic for their security provider.

What frontend framework is the generated client for?

It generates a type-safe TypeScript client optimized for Next.js applications using the App Router.

Does it handle database migrations?

Yes, it automatically configures Alembic and can generate initial migration scripts based on the models derived from your spec.

Can I use this on an existing FastAPI project?

Yes, the skill detects existing project structures and provides conflict resolution strategies like skipping, backing up, or overwriting files.

API Builder

Name: API Builder
Author: H2OSLabs

byH2OSLabs

0•

API開発

Generates production-ready FastAPI backend scaffolds and Next.js TypeScript clients from OpenAPI 3.x specifications.

API Builder is a powerful automation tool designed to bridge the gap between API design and implementation. By consuming OpenAPI 3.x specifications, it automatically generates a modular FastAPI project structure including SQLAlchemy models, Pydantic schemas, CRUD operations, and Alembic migrations. It goes beyond simple boilerplate by providing a comprehensive pytest suite and a type-safe Next.js TypeScript client, ensuring that your backend and frontend remain synchronized. Whether you are bootstrapping a new microservice or extending an existing application, API Builder enforces best practices and architectural consistency while significantly reducing manual coding time.

主な機能

010 GitHub stars

02Built-in database migration management using Alembic

03Comprehensive integration and unit test generation using pytest and httpx

04Type-safe Next.js TypeScript client generation for seamless frontend integration

05Complete CRUD logic and FastAPI router scaffolding with dependency injection

06Automated generation of SQLAlchemy models and Pydantic validation schemas

ユースケース

01Generating synchronized TypeScript API clients to maintain type safety across the stack

02Adding new resource endpoints and database models to an existing Python project

03Rapidly bootstrapping a design-first FastAPI backend from an OpenAPI spec file

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add h2oslabs/synnovatorzero api-builder

For use in Claude.ai and ChatGPT

主な機能

010 GitHub stars

02Built-in database migration management using Alembic

03Comprehensive integration and unit test generation using pytest and httpx

04Type-safe Next.js TypeScript client generation for seamless frontend integration

05Complete CRUD logic and FastAPI router scaffolding with dependency injection

06Automated generation of SQLAlchemy models and Pydantic validation schemas

ユースケース

01Generating synchronized TypeScript API clients to maintain type safety across the stack

02Adding new resource endpoints and database models to an existing Python project

03Rapidly bootstrapping a design-first FastAPI backend from an OpenAPI spec file