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How to connect Wati to Claude

Connect Claude Web, Desktop and Cowork to Wati MCP. Send session message to new lead, add customer contact from webform submission, and more using natural language, with authentication handled for you.

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Wati is a WhatsApp Business API platform that automates marketing, sales, and customer support. It helps businesses engage customers, send notifications, and manage conversations at scale.

5 Tools

Introduction

Claude is Anthropic's AI assistant, available on the web, in the desktop app, and on mobile. Cowork is its agent for knowledge work, and it runs on all of those surfaces too. Connected to your apps, Claude can work with your files and services to accomplish complex tasks on your behalf.

This guide walks you through the easiest and most secure way to connect your Wati account to Claude via Composio Connect, enabling it to send session message to new lead, add customer contact from webform submission, update contact attributes after support chat, and more such actions on your behalf without compromising your account security.

Setup is the same on Claude Web, Desktop, and Cowork, and you only need to do it once. The connector is tied to your account, so it's available in all three.

Also integrate Wati with

Claude CodeOpenAI Agents SDKClaude Agent SDKCodexOpenClawHermesAtomic AgentGoogle ADKLangChainVercel AI SDKMastra AILlamaIndexCrewAIPydantic AIAutoGen

Connecting Wati to Claude Web, Desktop, and Cowork

Two ways to add the Composio connector. Pick whichever you prefer.

1. Add with one click

Click the button. Claude opens with the Composio connector filled in. Click Add, then go to step 2.

Add to Claude

Add manually

In Claude Desktop, click Customize in the left sidebar, then select Connectors and click the + icon at the top.

Claude Desktop connectors screen with Add custom connector selected

Click Add custom connector and paste in the Composio MCP server URL:

bash
https://connect.composio.dev/mcp
Add custom connector dialog with Composio MCP server URL

2. Authorize in your browser

Click Connect. You'll be redirected to a browser window where you can authorize Composio to continue.

Composio authorization screen for Claude Web, Desktop, and Cowork

3. Connect your Wati account

Back in Claude, ask it to connect to Wati or give it any Wati-related task.

For example, ask Claude to:

  • "Send session message to new lead"
  • "Add customer contact from webform submission"
  • "Update contact attributes after support chat"

It will prompt you to authenticate and authorize access.

That's it. Composio's tools are now available in Claude, and your Wati account is ready to use.

What is the Wati Claude Connector, and what's possible with it?

The Wati MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Wati WhatsApp Business account. It provides structured and secure access to your business messaging, so your agent can add contacts, send WhatsApp messages, update contact details, and retrieve team information automatically on your behalf.

  • Automated contact management: Have your agent add new WhatsApp contacts, ensuring customers are registered before any communication starts.
  • Proactive messaging via WhatsApp: Empower your agent to send session messages to customers for support, marketing, or updates within the active session window.
  • Contact attribute updates: Let your agent update existing contact information or custom attributes, so your customer data stays fresh and relevant.
  • Team coordination and retrieval: Quickly fetch lists of your Wati teams, making it easy for your agent to understand and act on organizational structure.

Troubleshooting

1. Why does Claude not use the Composio connector for Wati?

The connector can show as connected, but Claude must use it in each Wati conversation.

  • Click + at the lower left of the chat, or type /.
  • Hover Connectors.
  • Turn on Composio.
  • Ask Claude to connect to Wati again.

2. Why does Claude show an MCP server error before Wati connects?

Claude can show Couldn't reach the MCP server or Authorization with the MCP server failed when you add the connector for Wati.

  • Check that the connector URL is https://connect.composio.dev/mcp.
  • Connectors run from Anthropic's cloud, so your device network is usually not the problem.
  • Add the connector again from Customize > Connectors, then ask Claude to connect Wati.
  • If it fails again, send the error and the ofid_ reference id to support@composio.dev.

3. Why does the Wati authorization link not work?

The Composio connector is one server. Your Wati account connects separately when Claude asks for it.

  • If the browser does not open, or the link expires, ask Claude to retry the Wati connection.
  • Composio creates a fresh Wati authorization link.
  • Open that link in your browser and finish the Wati sign-in.

4. Why do Wati actions fail after they worked before?

The Wati connection can expire or lose permission.

  • Ask Claude to inspect the Wati connection.
  • If the connection is unhealthy, disconnect it when Claude prompts you.
  • Reconnect the Wati account and retry the action.
  • If Claude shows a permission prompt, approve it before Claude changes data in Wati.
  • If the action still fails with a permission error, check that the connected account has that permission in Wati itself.

5. How do I switch to a different Wati account?

Claude can manage the Wati connection for you.

  • Ask Claude to disconnect or delete the current Wati account.
  • Ask Claude to connect Wati again.
  • Open the new Composio authorization link for Wati.
  • Sign in with the other Wati account in the browser.
  • After the account connects, ask Claude to retry the Wati task.

6. Why is my Wati connection missing in Claude Desktop or on a Team plan?

The connector belongs to your Claude account, so your Wati connection works in Claude Web, Desktop, and Cowork.

  • In Claude Desktop, open Customize > Connectors.
  • Next to Composio, click ⋮ and click Clear cache.
  • If Wati tools still do not appear, click ⋮, disconnect, remove the connector, and add it again.
  • On Team or Enterprise, an Owner or Primary Owner must enable the connector before you can connect Wati.
TOOLS

Supported Tools

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

Add Contact

Tool to add a new contact in WATI.

Get Teams

Tool to retrieve a list of teams from WATI.

Send Session Message

Tool to send a session message to a specified WhatsApp number.

Wati update chat status

Update the status of a chat/conversation in WATI Team Inbox.

Update Contact Attributes

Tool to update attributes of an existing contact.

FRAMEWORKS

How to build Wati MCP Agent with another framework

Claude Code logo

Claude Code

Use Wati MCP with Claude Code

OpenAI Agents SDK logo

OpenAI Agents SDK

Use Wati MCP with OpenAI Agents SDK

Claude Agent SDK logo

Claude Agent SDK

Use Wati MCP with Claude Agent SDK

Codex logo

Codex

Use Wati MCP with Codex

OpenClaw logo

OpenClaw

Use Wati MCP with OpenClaw

Hermes logo

Hermes

Use Wati MCP with Hermes

Atomic Agent logo

Atomic Agent

Use Wati MCP with Atomic Agent

Google ADK logo

Google ADK

Use Wati MCP with Google ADK

LangChain logo

LangChain

Use Wati MCP with LangChain

Vercel AI SDK logo

Vercel AI SDK

Use Wati MCP with Vercel AI SDK

Mastra AI logo

Mastra AI

Use Wati MCP with Mastra AI

LlamaIndex logo

LlamaIndex

Use Wati MCP with LlamaIndex

CrewAI logo

CrewAI

Use Wati MCP with CrewAI

Pydantic AI logo

Pydantic AI

Use Wati MCP with Pydantic AI

AutoGen logo

AutoGen

Use Wati MCP with AutoGen

FAQ

Frequently asked questions

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

Yes, you can. Claude Cowork 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 Wati tools.

Yes, absolutely. You can configure which Wati 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 Wati data and credentials are handled as safely as possible.

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