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# Send preview

> Text a preview of a campaign message to one phone number. Input schema, a tools/call example and an example result.

Source: https://cotlet.dev/docs/mcp/postscript/send_preview

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)

Text a preview of a campaign message to one phone number.

Postscript MCP tools: https://cotlet.dev/docs/mcp/postscript.md

MCP tool: `postscript_write → send_preview`

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

Uses Send Preview next to the message in Flow Builder and the phone number you give. It reaches a real phone and counts as usage, so use your own number. Returns sent once Postscript accepts it. By default you confirm each call; you can switch that off for this tool.

## Parameters

| Name | Type | Required | Description |
|---|---|---|---|
| `campaign_id` | string | yes | Campaign from list_campaigns or create_campaign. |
| `phone` | string | yes | Phone number to text. |

## tools/call

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "postscript_write",
    "arguments": {
      "operation": "send_preview",
      "arguments": {
        "campaign_id": "campaign_8c41d2",
        "phone": "phone"
      }
    }
  }
}
```

## Example response

```json
{
  "content": [
    {
      "type": "text",
      "text": "{ ... same JSON as structuredContent ... }"
    }
  ],
  "structuredContent": {
    "campaign_id": "f_51877",
    "phone": "+1 555 0100",
    "status": "sent"
  },
  "isError": false
}
```

Previous: [Create campaign draft](https://cotlet.dev/docs/mcp/postscript/create_campaign.md)
Next: [Schedule or launch campaign](https://cotlet.dev/docs/mcp/postscript/schedule_campaign.md)

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