---
title: "ChatGPT"
description: "Connect Voicetta in ChatGPT Developer mode so ChatGPT can place a call and get a real-world task done."
publishedAt: "2026-10-03"
modifiedAt: "2026-10-03"
category: "Getting Started"
tags: "Voicetta, ChatGPT, MCP, Developer mode, outbound calls, get it done"
navOrder: "25"
canonical: "https://voicetta.com/developers/chatgpt"
---

# ChatGPT

ChatGPT can ask Voicetta to place a phone call from your workspace and then read back what happened.

This is a remote MCP server. It is not the older ChatGPT Plugins system, and it is not the Setup MCP used to provision a new agent.

## Before you connect

1. In Voicetta, open **Settings → Developers**.
2. Create a workspace API key and tick **Place outbound calls**.
3. Give at least one agent a phone number with outbound calling enabled.

The key is a bearer secret. Treat it like a password.

## Connect in ChatGPT Developer mode

1. In ChatGPT, turn on **Developer mode** (Settings → Apps & Connectors, or the Connectors section in your workspace).
2. Add a custom MCP server.
3. Server URL: `https://api.voicetta.com/mcp`
4. Authentication: **Bearer**
5. Token: the workspace API key (`vk_live_...`)

ChatGPT will call `initialize`, then list two tools:

| Tool | What it does |
|---|---|
| `voicetta_get_it_done` | Starts a call. Arguments: `goal`, `to`, optional `assistant_id` and `customer_name`. Returns a `task_id`. |
| `voicetta_get_task` | Reads status and the result after the call ends. |

## Try it

Ask ChatGPT something like:

> Get a refund for my stay on 12 October. Call +48 123 456 789.

ChatGPT should call `voicetta_get_it_done`, then poll `voicetta_get_task` until status is `completed` or `failed`.

If you omit `assistant_id`, Voicetta picks the workspace agent that can already dial out.

## What the agent does on the call

The outbound prompt gets one extra block: accomplish `goal`. It does not answer as an inbound receptionist. Voice, number, SMS, and email tools stay as you configured them.

## If it does not connect

- The URL must be exactly `https://api.voicetta.com/mcp` — not `mcp.voicetta.com`, which is Setup MCP.
- The key must have **Place outbound calls**.
- Outbound calling must be enabled for the agent's number.
- The destination must be E.164, for example `+14155559999`.

## Related pages

* [Overview](/developers/overview)
* [Outbound Calls API](/developers/outbound-calls)
* [Dynamic Variables](/developers/dynamic-variables)
* [Read API Reference](/developers/api-reference)
* [Quickstart](/developers/quickstart)