Python

pip install requests

import requests
import os

API_KEY = os.getenv('CHAT402_API_KEY')
API_URL = 'https://api.chat402.xyz/api/v1'

def chat(prompt: str, model: str = 'gpt-3.5-turbo'):
    response = requests.post(
        f'{API_URL}/prompt',
        headers={
            'Authorization': f'Bearer {API_KEY}',
            'Content-Type': 'application/json'
        },
        json={
            'model': model,
            'prompt': prompt
        }
    )

    if response.status_code == 402:
        raise Exception('Insufficient balance')

    response.raise_for_status()
    data = response.json()

    return {
        'text': data['text'],
        'cost': data['cost']['totalCost'],
        'tokens': data['usage']['totalTokens']
    }

# Usage
result = chat('Explain machine learning')
print(result['text'])
print(f"Cost: ${result['cost']:.6f}")