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# Send message

> Send a text to one contact, as a reply in the Inbox or as a new conversation. Input schema, a tools/call example and an example result.

Source: https://cotlet.dev/docs/mcp/simpletexting/send_message

Docs sections: [Get started](https://cotlet.dev/docs.md) · [REST API](https://cotlet.dev/docs/api.md) · [MCP](https://cotlet.dev/docs/mcp.md) · [SDKs & CLI](https://cotlet.dev/docs/sdks.md) · [Integrations](https://cotlet.dev/docs/integrations.md)

Send a text to one contact, as a reply in the Inbox or as a new conversation.

SimpleTexting MCP tools: https://cotlet.dev/docs/mcp/simpletexting.md

MCP tool: `simpletexting_write → send_message`

Access: write. Confirm: waits for the user's OK before it runs.

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 | Required | Description |
|---|---|---|---|
| `contact_phone` | string | yes | Phone number of the contact, with country code. |
| `text` | string | yes | Message text. |

## tools/call

```json
{
  "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

```json
{
  "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
}
```

Previous: [List keywords](https://cotlet.dev/docs/mcp/simpletexting/list_keywords.md)
Next: [Schedule message](https://cotlet.dev/docs/mcp/simpletexting/schedule_message.md)

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