🔗 API Standard

REST API / HTTP Standards

REST (Representational State Transfer) is the dominant architectural style for web APIs, using standard HTTP methods (GET, POST, PUT, PATCH, DELETE) and JSON data exchange. Virtually every SaaS platform exposes a REST API for integration, automation, and developer access.

Used by these tools

⚙️ Dev Tools

GitHub Enterprise GitHub Free GitHub Team GitLab Free GitLab Premium GitLab Ultimate Basic Plan Free Plan Professional Plan Docker Business Docker Personal Docker Pro Enterprise Plan Hobby (Free) Pro Plan

📧 Marketing

Essentials Plan Free Plan Premium Plan Standard Plan Free CRM + Marketing Marketing Hub Professional Marketing Hub Starter Email + SMS Plan Email Plan Free Plan Business Plan Guru Plan Pro Plan

🤖 AI Tools

ChatGPT Enterprise ChatGPT Free ChatGPT Plus ChatGPT Team Claude Free Claude Pro Claude Team Gemini (Free) Gemini Advanced (Google One AI Premium)

💬 Communication

Free Plan Business+ Plan Enterprise Grid Pro Plan

💰 Finance

Advanced Essentials Plus Simple Start Premium Plan Standard Plan Starter Plan

플랜 기능 & 사양

Protocol	HTTP/1.1, HTTP/2, HTTP/3
Data Format	JSON (primary), XML (legacy)
Authentication	API keys, OAuth 2.0, Bearer tokens
Documentation	OpenAPI 3.x (Swagger)
Versioning	/v1/, /v2/ URL versioning (common)