don't use for production

phone_verifications_start_controller.rb

class Api::V1::PhoneVerificationsController < ApplicationController
  def start
    response = Authy::PhoneVerification.start(via: "sms", country_code: 1, phone_number: phone_number_params)

    if response.ok?
      # verification was started
      render json: {"success": true, message: "Verification code was sent to your phone number"}, status: :ok
    else
      render json: response
    end
  end
end