Building AI APIs with FastAPI

Create production-ready APIs for your AI models using FastAPI.

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Installation

bash
pip install fastapi uvicorn transformers torch

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Basic API

python
from fastapi import FastAPI
from transformers import pipeline
app = FastAPI()
generator = pipeline("text-generation", model="gpt2")
@app.post("/generate")
async def generate(prompt: str):
    result = generator(prompt, max_length=100)
    return {"response": result[0]["generated_text"]}

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Production Features

Automatic API documentation

Request validation with Pydantic

Async support for high performance

Easy deployment with Docker