How to connect Klaviyo MCP to Claude Cowork

Cowork is Anthropic's AI agent for knowledge work. Think of it as Claude Code for everything else. It works autonomously with your computer, local files, and applications to accomplish complex tasks. This guide walks you through the easiest and most secure way to connect your Klaviyo MCP account to Cowork via Composio Connect, enabling it to segment customers who purchased last month, create welcome email flow for new subscribers, list top performing campaigns this quarter, and more such actions on your behalf without compromising your account security.

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Klaviyo is a marketing automation platform for email, SMS, and customer data. Use it to segment audiences and run targeted campaigns with analytics.

Introduction

Cowork is Anthropic's AI agent for knowledge work. Think of it as Claude Code for everything else. It works autonomously with your computer, local files, and applications to accomplish complex tasks.

This guide walks you through the easiest and most secure way to connect your Klaviyo MCP account to Cowork via Composio Connect, enabling it to segment customers who purchased last month, create welcome email flow for new subscribers, list top performing campaigns this quarter, and more such actions on your behalf without compromising your account security.

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Connecting Klaviyo MCP to Claude Cowork

1. Open Customize

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

2. Add the Composio MCP server

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

3. 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 Cowork

4. Connect your Klaviyo MCP account

Back in Cowork, ask the agent to connect to Klaviyo MCP or give it any Klaviyo MCP-related task.

For example, ask Cowork to:

  • "Segment customers who purchased last month"
  • "Create welcome email flow for new subscribers"
  • "List top performing campaigns this quarter"

It will prompt you to authenticate and authorize access.

That's it. Composio's tools are now available in Cowork, and your Klaviyo MCP account is ready to use.

What is Claude Cowork?

Claude Cowork is Anthropic's agent for general knowledge work. It can use your computer, files, and connected applications to complete longer-running tasks across your work tools.

With Composio Connect, Cowork can securely access apps like Klaviyo MCP through MCP without you sharing account credentials directly with the agent.

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

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

FAQ

Frequently asked questions

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

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

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