# GET /email-campaigns/:campaign_id/preview-audience

**Resource:** [Email Campaigns](./email-campaigns.md)  
**MCP tool:** `preview_blast_audience`  
**Scopes:** `email-blasts:read`  
**Write operation:** no

Preview the audience an email campaign would target.

## Parameters

| Name | In | Type | Required | Description |
|------|----|------|----------|-------------|
| `campaign_id` | path | string | yes |  |

## Request example

```bash
curl   "https://api.trustpager.com/functions/v1/api/v1/email-campaigns/:campaign_id/preview-audience"   -H "Authorization: Bearer YOUR_API_KEY"
```

---
Base URL: `https://api.trustpager.com/functions/v1/api/v1` — Auth: `Authorization: Bearer YOUR_API_KEY`