> For the complete documentation index, see [llms.txt](https://apidocs.api19.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://apidocs.api19.com/sms-mms.md).

# SMS/MMS

- [Send SMS](https://apidocs.api19.com/sms-mms/send-sms.md): Send an SMS Message
- [Send MMS](https://apidocs.api19.com/sms-mms/send-mms.md): Send an MMS Message
- [Receive SMS/MMS](https://apidocs.api19.com/sms-mms/receive-sms-mms.md): Receive an SMS / MMS message to your system
- [Receive Delivery Receipts](https://apidocs.api19.com/sms-mms/receive-delivery-receipts.md): Receive a SMS message to your system
- [Lookup SMS Message](https://apidocs.api19.com/sms-mms/lookup-sms-message.md)