Send an SMS message

Queues a single SMS for delivery and returns the message ID plus billing breakdown immediately. The message is delivered asynchronously; poll GET /api/v2/notify/{messageId} for delivery status.

curl -X POST "https://example.com/api/v2/notify" \  -H "Content-Type: application/json" \  -d '{    "message": "string",    "phoneNumber": "string"  }'

{  "success": true,  "messageId": "string",  "queued": true,  "cost": 0,  "parts": 0,  "pricePerMessage": 0,  "encoding": "string",  "length": 0}