Send message
Send a text to one contact, as a reply in the Inbox or as a new conversation.
MCP tool simpletexting_write → send_message
write Confirm
Sends one text to a contact from the account number, in the contact's conversation. Returns the message id and its time. A sent text cannot be taken back. The agent should read the thread with get_conversation first. By default you confirm each call; you can switch that off for this tool.
Parameters
| Name | Type | Description |
|---|---|---|
| contact_phone string required | string | Phone number of the contact, with country code. |
| text string required | string | Message text. |
tools/call
{
"jsonrpc": "2.0",
"id": 1,
"method": "tools/call",
"params": {
"name": "simpletexting_write",
"arguments": {
"operation": "send_message",
"arguments": {
"contact_phone": "+12125550147",
"text": "Yes, Friday works. We have 10 am open. Reply YES to confirm."
}
}
}
}Example response
{
"content": [
{
"type": "text",
"text": "{ ... same JSON as structuredContent ... }"
}
],
"structuredContent": {
"message_id": "m_77d0c4",
"conversation_id": "c_8f21a6",
"contact_phone": "+12125550147",
"direction": "outgoing",
"status": "sent",
"at": "2026-10-23T09:30:00-04:00"
},
"isError": false
}