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How to connect Heyy to Claude

Connect Claude Web, Desktop and Cowork to Heyy MCP. Send promotional sms to vip customers, reply to unread instagram messages, and more using natural language, with authentication handled for you.

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Heyy is a messaging automation platform for WhatsApp, SMS, Messenger, and Instagram. Streamline customer conversations across channels with one tool.

13 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 Heyy account to Claude via Composio Connect, enabling it to send promotional SMS to VIP customers, reply to unread Instagram messages, broadcast order updates on WhatsApp group, 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 Heyy with

Claude CodeOpenAI Agents SDKClaude Agent SDKGrok BotCodexOpenClawHermesAtomic AgentGoogle ADKLangChainVercel AI SDKMastra AILlamaIndexCrewAIPydantic AIAutoGen

Connecting Heyy 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 Heyy account

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

For example, ask Claude to:

  • "Send promotional SMS to VIP customers"
  • "Reply to unread Instagram messages"
  • "Broadcast order updates on WhatsApp group"

It will prompt you to authenticate and authorize access.

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

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

The Heyy MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Heyy account. It provides structured and secure access so your agent can perform Heyy operations on your behalf.

Troubleshooting

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

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

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

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

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

  • 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 Heyy.
  • If it fails again, send the error and the ofid_ reference id to support@composio.dev.

3. Why does the Heyy authorization link not work?

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

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

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

The Heyy connection can expire or lose permission.

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

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

Claude can manage the Heyy connection for you.

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

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

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

  • In Claude Desktop, open Customize > Connectors.
  • Next to Composio, click ⋮ and click Clear cache.
  • If Heyy 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 Heyy.
TOOLS

Supported Tools

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

Create Contact Attribute

Tool to create a new custom attribute for contacts in Heyy.

Create Contact

Tool to create a new contact in Heyy with optional details including first name, last name, email, phone number, labels, and custom attributes.

Create Label

Tool to create a new label for categorizing contacts in Heyy.

Create Webhook

Tool to create a new webhook for receiving event notifications across multiple channels.

Delete Attribute

Tool to delete an attribute by its unique identifier.

Delete Label

Tool to delete a label by its unique identifier.

Delete Webhook

Tool to delete a webhook by its unique identifier.

List Attributes

Tool to retrieve all attributes available in the Heyy system.

List Automations

Tool to retrieve automation workflows for a specified channel.

List Channels

Tool to retrieve all available channels from the Heyy system.

List Message Templates

Tool to retrieve all message templates available in the Heyy system.

List API Webhooks

Tool to retrieve all API webhooks configured for the account.

Update Webhook

Tool to update a webhook's URL and active status.

FRAMEWORKS

How to build Heyy MCP Agent with another framework

Claude Code logo

Claude Code

Use Heyy MCP with Claude Code

OpenAI Agents SDK logo

OpenAI Agents SDK

Use Heyy MCP with OpenAI Agents SDK

Claude Agent SDK logo

Claude Agent SDK

Use Heyy MCP with Claude Agent SDK

Grok Bot logo

Grok Bot

Use Heyy MCP with Grok Bot

Codex logo

Codex

Use Heyy MCP with Codex

OpenClaw logo

OpenClaw

Use Heyy MCP with OpenClaw

Hermes logo

Hermes

Use Heyy MCP with Hermes

Atomic Agent logo

Atomic Agent

Use Heyy MCP with Atomic Agent

Google ADK logo

Google ADK

Use Heyy MCP with Google ADK

LangChain logo

LangChain

Use Heyy MCP with LangChain

Vercel AI SDK logo

Vercel AI SDK

Use Heyy MCP with Vercel AI SDK

Mastra AI logo

Mastra AI

Use Heyy MCP with Mastra AI

LlamaIndex logo

LlamaIndex

Use Heyy MCP with LlamaIndex

CrewAI logo

CrewAI

Use Heyy MCP with CrewAI

Pydantic AI logo

Pydantic AI

Use Heyy MCP with Pydantic AI

AutoGen logo

AutoGen

Use Heyy MCP with AutoGen

FAQ

Frequently asked questions

With a standalone Heyy MCP server, the agents and LLMs can only access a fixed set of Heyy tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Heyy 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 Heyy tools.

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

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