Twilio Bulk Messaging API

curl -X POST 'https://comms.twilio.com/v1/Messages' \
-H 'Content-Type: application/json' \
-d '{
    "from": {
        "address": "+15017122661",
        "channel": "SMS"
    },
    "to": [
        {
            "address": "+15558675310",
            "channel": "PHONE"
        }
    ],
    "content": {
        "text": "Hello from Twilio Bulk Messaging!"
    }
}' \
-u $TWILIO_ACCOUNT_SID:$TWILIO_AUTH_TOKEN