How to connect Carbon Voice to Grok Bot

Connect Grok Bot to Carbon Voice MCP. Summarize today's missed voice messages, send a voice reply to alice, and more using natural language, with authentication handled for you.

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Carbon Voice MCP is a voice-first collaboration platform for messages, conversations, and workflows. Use it to centralize voice communications and streamline team collaboration.

28 Tools

Introduction

Grok is xAI's assistant, and its bot builder lets you create a personal agent that holds context, runs skills, and connects to the apps you already use through plugins.

This guide explains how to connect Carbon Voice to a Grok bot using Composio Connect, which handles OAuth, token refresh, and reliability so you do not have to. You add Composio as a plugin, authenticate once, then ask your bot to work with Carbon Voice in plain language.

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Why use Composio?

Composio exposes 1,500+ apps to your Grok bot through a single connection, so you get:

  • Connect to 1,500+ apps with on-demand tool loading, so you do not fill your context window with unnecessary tool definitions.
  • Use programmatic tool calling through a remote workbench, letting the model write its own code to handle complex tool chaining. This reduces back-and-forth for frequent tool calls.
  • Handle large tool responses outside the model context to keep conversations lean.

Connecting Carbon Voice to Grok Bot

Once Grok Bot is set up, you connect Carbon Voice entirely from its interface, and the whole flow takes under a minute.

Set up Grok Bot

Get access. Grok Bot is included with Cursor Ultra, Cursor Premium Teams, and SuperGrok Heavy. Get the desktop app for macOS or Windows from x.ai/bot and sign in. An iPhone companion app is also available, and your bots sync across devices.

Create a bot. Pick a suggested role or define your own, then give it a short name, one primary job, and a short description of how it should work. Focused bots work best, because a clear role gives the bot more useful context over time.

Connect Carbon Voice

1. Add the Composio plugin

Click the button. The Composio listing on x.ai opens and launches Grok Bot for you. If the app does not open on its own, click Add to Grok Bot.

Add to Grok Bot

Composio for Grok Bot listing on x.ai with the Add to Grok Bot button

Grok Bot opens the Composio plugin, showing its connector and skills. Click Add.

Composio plugin sheet in Grok Bot with the Add button

2. Authenticate

Go to the Installed section and click the Composio entry. You'll see its connector and skills listed.

Installed Composio plugin showing the Authenticate button

Click Authenticate. You'll be taken to the Composio consent screen. Review the access it requests and click Authorize. Composio handles the OAuth handshake for you, so you never touch API keys or tokens.

Composio authorization screen with Authorize and Deny

3. Connect your Carbon Voice account

Back in the chat, ask your bot to connect to Carbon Voice or give it any Carbon Voice task.

For example, ask it to:

  • "Summarize today's missed voice messages"
  • "Send a voice reply to Alice"
  • "List active conversations needing follow up"

It will prompt you to authenticate and authorize access.

That's it. Composio's tools are now available in your Grok bot, and your Carbon Voice account is ready to use.

What is Grok Bot?

Grok is xAI's assistant, available as a chat interface and a bot builder for creating personal agents that run skills and connect to external apps.

With Composio Connect, your Grok bot can securely access apps like Carbon Voice through MCP without you sharing account credentials directly with the agent.

What is the Carbon Voice MCP server, and what's possible with it?

The Carbon Voice MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Carbon Voice account. It provides structured and secure access to your voice messages, conversations, folders, workspaces, and collaborators, so your agent can read recent messages, send direct or conversation messages, summarize conversations, organize content, and run AI actions on your behalf.

  • Message and conversation retrieval: Have your agent list recent messages, browse conversations, retrieve specific messages, and view the people taking part in a conversation.
  • Direct and conversation messaging: Instruct your agent to send direct messages, add messages to existing conversations, create VoiceMemo messages, and attach files to messages.
  • Conversation summaries and AI actions: Let the agent summarize conversations, list available AI actions, run an action for a message or shared link, and retrieve previous responses.
  • Folder organization: Direct your agent to create, rename, move, or delete folders, view their messages, and move messages into the right folder.
  • Workspace and collaborator lookup: Have your agent retrieve workspace details, view your profile, find Carbon Voice users, and inspect collaborator information.

Way Forward

Now that Carbon Voice is connected, extend your setup by connecting the other apps you already use every day, so your Grok bot can run true cross-app workflows end to end.

  • Connect Calendar to turn threads into scheduled meetings automatically.
  • Connect Slack or Teams to post summaries, approvals, and alerts where your team works.
  • Connect Notion, Linear, Jira, or Asana to convert requests into tickets, tasks, and docs.
  • Connect Drive, Dropbox, or OneDrive to fetch, file, and share attachments without manual steps.

Start with one workflow you do repeatedly, then keep adding apps as you find new handoffs. With everything behind a single connection, your bot can coordinate multiple tools safely and reliably in one conversation.

TOOLS

Supported Tools

Every Carbon Voice MCP action and event your agent gets out of the box.

Add attachments to message

Add attachments to a message.

Create conversation message

Sends a message to an existing conversation or any type with a conversation_id.

Create direct message

Send a Direct Message (DM) to a User or a Group of Users.

Create folder

Create a new folder.

Create voicememo message

Create a VoiceMemo Message.

Delete folder

Delete a folder by its ID.

Get ai action responses

Retrieve previously generated AI Action (Prompt) responses by filtering for a specific prompt, message, or conversation ID.

Get conversation

Get a conversation by its ID.

Get conversation users

Get users in a conversation.

Get current user

Get the current user information.

Get folder

Get a folder by its ID.

Get folder with messages

Get a folder including its messages by its ID.

Get message

Get a message by its ID.

Get recent messages

Get most recent messages, including their associated Conversation, Creator, and Labels information.

Get root folders

Lists all root folders for a given workspace, including their names, IDs, and basic structure, but does not provide aggregate counts.

Get user

Get detailed information about a specific user by their ID.

Get workspaces basic info

Get basic information about a workspace.

List ai actions

List AI Actions (Prompts).

List conversations

List all conversations.

List messages

List Messages.

Move folder

Move a folder by its ID.

Move message to folder

Move a message to a folder by its ID.

Run ai action

Run an AI Action (Prompt) for a message.

Run ai action for shared link

Run an AI Action (Prompt) for a shared link.

Search user

Search for a User by their phone number, email address, id or name.

Search users

Search multiple Users by their phone numbers, email addresses, ids or names.

Summarize conversation

Summarize a conversation.

Update folder name

Update a folder name by its ID.

FAQ

Frequently asked questions

With a standalone Carbon Voice MCP server, the agents and LLMs can only access a fixed set of Carbon Voice tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Carbon Voice and many other apps based on the task at hand, all through a single MCP endpoint.

Yes, you can. Grok Bot fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right Carbon Voice tools.

Yes, absolutely. You can configure which Carbon Voice scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your Carbon Voice data and credentials are handled as safely as possible.

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