Introduction

Application Programming Interfaces (APIs) are the invisible connectors that power much of the digital world. From checking the weather on your phone to paying for a coffee with a tap, APIs are working behind the scenes to make software talk to software. Understanding their importance is key to understanding …

Introduction

FastAPI has quickly become one of the most popular Python frameworks for building APIs. Created by Sebastián Ramírez, it combines high performance, easy syntax, and automatic documentation generation — making it a favorite among developers building modern web services and microservices.

Why FastAPI?

1. Speed Built on Starlette and Pydantic, FastAPI …

Claude Code is not a chatbot. It lives in your terminal, reads your actual files, writes code, runs commands, and executes multi-step workflows — all with your permission. Here are 30 concepts you need to understand it properly. No fluff, no hand-holding.

The 30 Concepts

1. The Terminal — Claude Code doesn't …