Inkbox for ChatGPT: Plugin, Example Prompts & Reviews

Example prompts

3 from the official listing

Inkbox Send Sarah an iMessage that I'm running late, then show me our recent thread.
Inkbox Place a call Vista Trattoria to move tonight's reservation to 8pm, then pull and read me the call transcript once it's done.
Inkbox Send "acme-research" an Agent2Agent task via Inkbox for a pricing summary on our top three competitors.

Mention Inkbox by name in your message, as the official examples do.

How to use Inkbox in ChatGPT

Open Inkbox in ChatGPT’s plugin directory

Open Inkbox’s page on chatgpt.com. Sign in to ChatGPT if you are not already.
Install it from that page

Choose Install plugin there. It adds the Inkbox app and 1 skill to ChatGPT.
Mention Inkbox in a chat

Start a new chat and name it in your request, for example: “Inkbox, send Sarah an iMessage that I'm running late, then show me our recent thread.”

Availability can depend on your ChatGPT plan, your region and, on work accounts, your admin’s settings.

What Inkbox does

Inkbox gives an AI assistant its own communication identity: an email address, a phone number, SMS and iMessage, and voice calls, reachable by humans and other agents alike. The assistant reads and sends from its own inbox, handles its own calls and texts, and keeps a contact book and notes that carry context between conversations. Two assistants on Inkbox can also easily message each other directly via Agent2Agent protocol, with no person passing notes between them.

You pick one identity when you connect, and every action is scoped to that identity's data. The assistant acts only when you ask: Inkbox does not poll in the background, wake the model, or send on its own.

Phone numbers are currently available in the United States. Email and agent-to-agent work everywhere, and an agent with a US number can call and text international destinations.

From the official listing, written by Inkbox.

1 skill included

Packaged instructions ChatGPT follows for a specific task when Inkbox is in use.

onboarding

What Inkbox can access

The official listing names no Read or Write capability for Inkbox. Check what it asks for when you add it, and connect only the accounts you want it to use.

Before you connect it

OpenAI’s plugin pages note that a connected plugin may receive relevant parts of your chats to answer a request, and that Inkbox’s own terms and privacy policy then cover that data. You can disconnect a plugin later in ChatGPT’s settings. Read the privacy policy (inkbox.ai) and terms (inkbox.ai).

Inkbox reviews

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Inkbox in ChatGPT: questions and answers

What does Inkbox do in ChatGPT?

Inkbox gives an AI assistant its own communication identity: an email address, a phone number, SMS and iMessage, and voice calls, reachable by humans and other agents alike.

What can I ask Inkbox in ChatGPT?

The official listing suggests prompts like: “Send Sarah an iMessage that I'm running late, then show me our recent thread”; “Place a call Vista Trattoria to move tonight's reservation to 8pm, then pull and read me the call transcript once it's done”; “Send "acme-research" an Agent2Agent task via Inkbox for a pricing summary on our top three competitors”.

How do I use Inkbox in ChatGPT?

Open Inkbox’s page in ChatGPT’s plugin directory on chatgpt.com and install it there. Then mention Inkbox in a chat, for example: “Send Sarah an iMessage that I'm running late, then show me our recent thread”.

What skills come with Inkbox?

1 skill: onboarding.

Who makes the Inkbox plugin?

Inkbox, currently at version 1.0.3. Best GPT Apps is an independent directory and is not affiliated with OpenAI or Inkbox.

Is Inkbox available in Claude too?

Yes. Inkbox has a connector in Claude’s directory. Best Claude Apps covers the Inkbox connector, with setup steps and reviews. Inkbox for Claude →

Is Inkbox one of the old ChatGPT plugins from 2023?

No. The 2023 ChatGPT plugins were a separate beta that OpenAI has since retired. Today’s ChatGPT plugins are the apps directory under a new name: since July 2026 a plugin can bundle apps, skills and MCP servers.