app/utils/sms_utils.py

from twilio.rest import Client
from app.core.config import settings

def send_sms_otp(phone: str, otp: str) -> str:
    client = Client(settings.TWILIO_ACCOUNT_SID, settings.TWILIO_AUTH_TOKEN)

    message = client.messages.create(
        from_=settings.TWILIO_SMS_FROM,
        body=f"Your OTP is {otp}",
        to=phone
    )

    return message.sid