How to integrate Whatsapp MCP with Grok Build

Connect Grok Build to Whatsapp MCP. Send contact card to new lead, get business profile details for support, and more from your terminal, with authentication handled for you.

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WhatsApp is a business messaging platform for secure, automated customer communication. It streamlines chat workflows and customer outreach using the WhatsApp Business API.

17 Tools1 Triggers

How to integrate Whatsapp MCP with Grok Build

Grok Build is xAI's terminal coding agent. It runs on Grok 4.5, plans its work before it acts, and can run multiple sub-agents in parallel. It also reads Claude Code's MCP configuration, so any server you already have in a .mcp.json is picked up with no changes.

In this guide, I will show you how to connect your Whatsapp account to Grok Build through Composio, so it can send contact card to new lead, get business profile details for support, list all approved message templates, and more without leaving the terminal. Composio holds the OAuth tokens for you, and Grok Build only calls the tools you approve.

Also integrate Whatsapp with

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Why use Composio over a standalone MCP server?

  • Read and write access. Composio's Whatsapp integration lets Grok Build take real actions like creating drafts, sending updates, and labeling records, not just reading data.
  • 1,000+ SaaS toolkits out of the box. One endpoint gives you a full catalog of pre-built connectors, from Gmail and Slack to Notion, Linear, and Salesforce.
  • One MCP server for every app. Wire up a single Composio server instead of maintaining a separate MCP entry for each app.
  • Smart, context-aware tool loading. Grok Build caps how many tools it holds in a single request. Composio loads only the tools a task needs, so you do not spend that budget on tools you are not using.
  • Cross-app automation. Chain actions across apps in one run. Pull a thread, summarize it in Notion, and post the highlights to Slack from a single prompt.

Prerequisites

  • Grok Build installed and signed in. Install with curl -fsSL https://x.ai/cli/install.sh | bash on macOS or Linux, or irm https://x.ai/cli/install.ps1 | iex on Windows PowerShell. On first launch Grok opens a browser to authenticate; for headless or CI use, set an XAI_API_KEY environment variable instead (create the key at console.x.ai).
  • Access to the Whatsapp account you want to connect.
  • The Composio MCP endpoint. Composio's server is remote and hosted, so there is nothing to run locally and no tunnel to set up.

Step-by-step: Connect Whatsapp to Grok Build

1. Install and verify Grok Build

Install the CLI, then restart your shell so the grok binary lands on your PATH:

bash
curl -fsSL https://x.ai/cli/install.sh | bash
which grok

On Windows, install with PowerShell instead: irm https://x.ai/cli/install.ps1 | iex. If which grok returns a path, you are set. Grok Build runs on Grok 4.5 by default; you can switch models inside the session with /model <name>.

2. Add the Composio server

Add Composio as a remote HTTP MCP server with the grok mcp add command:

bash
grok mcp add --transport http composio https://connect.composio.dev/mcp

You can also add and manage servers from inside a session. Run /mcps to open the extensions modal on the MCP tab, then add a new server and paste the Composio URL. Added this way, Grok auto-detects the name from the URL and lists the server as connect:

bash
https://connect.composio.dev/mcp
Grok Build /mcps extensions modal listing MCP servers Grok Build adding the Composio MCP server with its URL

Grok also reads Claude Code-style config, so an entry in ~/.grok/config.toml or a project .mcp.json works the same way.

3. Authenticate

Composio uses OAuth. In the /mcps modal, select the Composio server and press i to authenticate (Grok also triggers this browser flow automatically the first time it uses a Composio tool). Click Allow to authorize access. Grok stores the tokens under ~/.grok/mcp_credentials.json, and /mcps shows Composio as connected.

Grok Build prompting to authenticate the Composio MCP server Composio authorization screen with the Allow button for Grok Build

4. Start building

Ask Grok to work with your Whatsapp account through Composio. On the first Whatsapp action, Composio prompts you to connect the account through OAuth. Approve the scopes once, and Composio handles token refresh from there.

What you can do after connecting Whatsapp

  • Send contact card to new lead
  • Get business profile details for support
  • List all approved message templates
  • Download media from latest customer message

Security + privacy notes (important)

  • Use least-privilege access. Grant only the Whatsapp scopes you actually need.
  • Review OAuth scopes before approving. Check that the requested scopes match what you expect Composio and Grok Build to do.
  • Keep write actions human-reviewed. Grok Build proposes a plan before it acts. Leave that approval step on for actions like sending messages or editing records.
  • Keep secrets out of version control. Your XAI_API_KEY and any tokens should never be committed. Use environment variables or a secrets manager.
TOOLS & TRIGGERS

Supported Tools and Triggers

Every Whatsapp action and event your agent gets out of the box.

Create message template

Create a new message template for the WhatsApp Business Account.

Delete message template

Delete a message template from the WhatsApp Business Account by name.

Get business profile

Get the business profile information for a WhatsApp Business phone number.

Get media info

Get metadata and download URL for uploaded WhatsApp media.

Get message templates

Get all message templates for the WhatsApp Business Account.

Get phone number

Retrieve detailed information about a specific WhatsApp Business phone number.

Get phone numbers

Retrieve all phone numbers registered to your WhatsApp Business Account.

Get template status

Get the status and details of a specific message template.

Send contacts

Send contacts WhatsApp number.

Send interactive buttons

Send an interactive button message with up to 3 reply buttons to a WhatsApp user.

Send interactive list

Send an interactive list message to a WhatsApp number.

Send location

Send a location message with coordinates, name, and address to a WhatsApp user.

Send media

Send a media message to a WhatsApp number.

Send media by

Send media using a media ID from previously uploaded media.

Send message

Send a text message to a WhatsApp user.

Send template message

Send a template message to a WhatsApp number.

Upload media

Upload media files (images, videos, audio, documents, stickers) to WhatsApp servers.

FRAMEWORKS

How to build Whatsapp MCP Agent with another framework

ChatGPT Work logo

ChatGPT Work

Use Whatsapp MCP with ChatGPT Work

Antigravity logo

Antigravity

Use Whatsapp MCP with Antigravity

OpenAI Agents SDK logo

OpenAI Agents SDK

Use Whatsapp MCP with OpenAI Agents SDK

Claude Agent SDK logo

Claude Agent SDK

Use Whatsapp MCP with Claude Agent SDK

Claude Code logo

Claude Code

Use Whatsapp MCP with Claude Code

Claude Cowork logo

Claude Cowork

Use Whatsapp MCP with Claude Cowork

Codex logo

Codex

Use Whatsapp MCP with Codex

Kimi Code logo

Kimi Code

Use Whatsapp MCP with Kimi Code

Cursor logo

Cursor

Use Whatsapp MCP with Cursor

VS Code logo

VS Code

Use Whatsapp MCP with VS Code

OpenCode logo

OpenCode

Use Whatsapp MCP with OpenCode

OpenClaw logo

OpenClaw

Use Whatsapp MCP with OpenClaw

Hermes logo

Hermes

Use Whatsapp MCP with Hermes

CLI logo

CLI

Use Whatsapp MCP with CLI

Google ADK logo

Google ADK

Use Whatsapp MCP with Google ADK

LangChain logo

LangChain

Use Whatsapp MCP with LangChain

Vercel AI SDK logo

Vercel AI SDK

Use Whatsapp MCP with Vercel AI SDK

Mastra AI logo

Mastra AI

Use Whatsapp MCP with Mastra AI

LlamaIndex logo

LlamaIndex

Use Whatsapp MCP with LlamaIndex

CrewAI logo

CrewAI

Use Whatsapp MCP with CrewAI

FAQ

Frequently asked questions

A standalone Whatsapp MCP server gives Grok Build a fixed set of Whatsapp tools tied to that one server. The Composio Tool Router lets Grok Build load tools from Whatsapp and many other apps on demand, based on the task, all through a single endpoint.

Yes. Grok Build ships with native MCP support. Add a server with the grok mcp add command, from the in-session /mcps modal, or by editing ~/.grok/config.toml. It also reads Claude Code-style .mcp.json files, so Grok Build discovers the tools automatically.

Yes. Grok Build has zero-migration compatibility with Claude Code's configuration, so the same Composio server entry works in both without edits.

Tokens, keys, and configuration are encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant, so your Whatsapp data and credentials are handled to that standard.

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