| Name | Type | Description | Notes |
|---|---|---|---|
| from | String | One of your SMS-enabled numbers (E.164; formatting is normalized). | |
| to | String | Recipient number (E.164). | |
| text | String | Message body. Required unless `mediaUrls` is set. Max 10 SMS segments (1530 GSM-7 or 670 unicode characters). | [optional] |
| mediaUrls | List<URI> | Public media URLs to attach (sends as MMS). Max 10. | [optional] |
| sendAt | OffsetDateTime | Optional. Schedule the send for a future time (ISO 8601 with offset, e.g. `2026-08-01T12:00:00Z`). Must be in the future. The message is queued and the `message.delivered` webhook fires when it actually sends. | [optional] |