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# Send preview

> Text a preview of a campaign message to one phone number. Inputs, cURL, Python and Node.js examples and an example response.

Source: https://cotlet.dev/docs/api/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 API: https://cotlet.dev/docs/api/postscript.md

`POST https://cotlet.dev/api/v1/postscript/campaigns/{campaign_id}/previews`

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. |

## Request

**cURL**

```bash
curl -X POST https://cotlet.dev/api/v1/postscript/campaigns/campaign_8c41d2/previews \
  -H "Authorization: Bearer $COTLET_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"phone":"phone"}'
```

**Python**

```python
result = client.call("postscript", "send_preview", {"campaign_id":"campaign_8c41d2","phone":"phone"})
```

**Node.js**

```js
const result = await cotlet.call('postscript', 'send_preview', {"campaign_id":"campaign_8c41d2","phone":"phone"});
```

**CLI**

```bash
cotlet call postscript send_preview --data '{"campaign_id":"campaign_8c41d2","phone":"phone"}'
```

## Example response

```json
{
  "campaign_id": "f_51877",
  "phone": "+1 555 0100",
  "status": "sent"
}
```

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

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