FastAPI Has a Free API — Build Production APIs in Python at Lightning Speed

FastAPI: The Fastest Python Web Framework FastAPI is a modern Python framework for building APIs. Auto-generated docs, type validation, async support — it is as fast as Node.js and Go frameworks while being pure Python. Why FastAPI Performance — on par with Node.js and Go Auto docs — Swagger UI and ReDoc generated automatically Type safety — Pydantic validation built-in Async — native async/await support Standards — OpenAPI and JSON Schema compliant The Free API from fastapi import FastAPI from pydantic import BaseModel app = FastAPI () class Item ( BaseModel ): name : str price : float in_stock : bool = True @app.get ( " / " ) def root (): return { " message " : " Hello World " } @app.post ( " /items/ " ) def create_item ( item : Item ): return { " item " : item , " total " : item . price * 1.1 } @app.get ( " /items/{item_id} " ) def get_item ( item_id : int , q : str = None ): return { " item_id " : item_id , " query " : q } pip install fastapi uvicorn uvicorn main:app --reload # Doc