# POST /agent/v1/voice/request-callback

**Resource:** [Voice Agent Toolkit](./agent-toolkit-voice.md)  
**MCP tool:** `voice_toolkit_request_callback`  
**Scopes:** `agent_toolkit:use`  
**Write operation:** yes

Voice agent toolkit — record a callback request.

## Parameters

| Name | In | Type | Required | Description |
|------|----|------|----------|-------------|
| `reason` | body | string | no |  |
| `require_approval` | body | boolean | no | Optional. Set true to route this write into the approval queue for human review instead of executing it immediately (returns 202 + an approval_id). Works even when your key/token has permission to execute directly. |

## Request example

```bash
curl -X POST   "https://api.trustpager.com/functions/v1/api/v1/agent/v1/voice/request-callback"   -H "Authorization: Bearer YOUR_API_KEY"   -H "Content-Type: application/json"   -d '{"reason":"..."}'
```

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