How to Use the Customer.io MCP in Claude

Q: What's the difference between listing campaigns and broadcasts in Customer.io with Claude Desktop?

The listautomatedcampaigns tool shows you triggered, multi-step campaigns. listbroadcastmessages is for one-time messages sent to a large audience. Claude can pull from either, just tell it which type you're looking for.

Ask Claude Desktop for live Customer.io campaign stats, user segments, and performance metrics without leaving your chat.

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Connect Customer.io MCP to Claude Desktop

Create your Vinkius account to connect Customer.io to Claude Desktop and route execution through our secure gateway. The platform manages server hosting, runtime updates, and security layers. Configuration requires no manual server provisioning.

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Setup Customer.io with Claude Desktop

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Check Campaign Performance Instantly

Ask Claude to pull real-time metrics for any campaign. You can get specific counts for emails sent, opened, clicked, and converted using the `get_campaign_performance` tool. It's perfect for quick status checks when you're planning your next steps. You can also get a broader view. The `get_engagement_summary` tool gives you high-level KPIs across all your messaging. This setup lets you query your Customer.io analytics directly from your chat prompt, whether you're using the desktop app or claude.ai.

Manage Customer Data from Chat

This MCP server connects Claude directly to your customer database. Use `get_customer_details` to pull up a full user profile, including all their custom attributes and segment memberships. Need to find someone fast? `search_customers_by_email` gets you their ID right away. You can even create or update profiles. The `identify_customer` tool lets your agent add new users or modify existing ones with new attributes. It’s a fast way to handle one-off customer updates without opening the Customer.io dashboard.

Browse Your Customer.io Assets

Get a full inventory of your marketing setup. Ask Claude to `list_automated_campaigns`, `list_broadcast_messages`, or `list_newsletters` to see exactly what's running. It's like having a searchable directory of all your messaging campaigns. This also works for audiences. `list_customer_segments` shows you every segment you've built, and `list_customers` can pull a complete list of users in your workspace. You get total visibility without clicking through web UI menus.

Setup guide

Set up Customer.io MCP in Claude Web or Desktop

1

Open Claude Settings

Go to claude.ai, click your profile icon, then navigate to Customize → Connectors.
2

Add Custom Connector

Click the "+" button and select Add custom connector. Paste your Vinkius endpoint URL: https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com. For OAuth-protected servers, expand Advanced settings to add credentials.
3

Start a conversation

Open a new chat. The Customer.io MCP tools are available immediately — no restart needed.

Endpoint URL

https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp

No configuration file needed — paste the URL directly in the Claude web interface.

Available on Free (1 connector), Pro, Max, Team, and Enterprise plans.

Prerequisites

Claude Desktop installed (macOS or Windows)
Active Vinkius subscription with a valid endpoint token

1

Open Claude Desktop Settings

Click the menu icon at the top-left corner, go to Settings → Developer → Edit Config. This opens claude_desktop_config.json in your default text editor.
2

Paste the Customer.io MCP configuration

Copy the JSON snippet on the right into the mcpServers object. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com.
3

Restart Claude Desktop

Close and reopen the application. Claude needs a full restart to load new MCPs — refreshing a conversation is not enough.
4

Verify the connection

Open a new conversation. Click the 🔌 icon at the bottom of the message input. You should see tools listed under customerio-mcp.

json

{
  "mcpServers": {
    "customerio-mcp": {
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

Get your connection token →

Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by Customer.io. All third-party trademarks, logos, and brand names are the property of their respective owners. Their use on this website is strictly for informational purposes to identify service compatibility and interoperability.

Why Choose Vinkius

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Common questions about Customer.io MCP in Claude Desktop

Once connected, just ask Claude directly. For example, "What were the open and click rates for the 'Q3 Welcome' campaign?" Claude uses the `get_campaign_performance` tool to fetch and show you the latest numbers.

Yes, you can. Use a prompt like, "Find the customer with email 'user@example.com' in Customer.io." Your agent will use the `search_customers_by_email` tool to get their profile ID.

The `list_automated_campaigns` tool shows you triggered, multi-step campaigns. `list_broadcast_messages` is for one-time messages sent to a large audience. Claude can pull from either, just tell it which type you're looking for.

Yes, on claude.ai. You can add the MCP server as a custom connector on any plan, including Free. For the native Claude Desktop app, you'll need the app installed to configure local tool access.

Your Vinkius server only processes requests and responses as they pass through. It doesn't store any of your customer data, like emails, attributes, or campaign metrics. All authentication is handled by a single endpoint token, keeping your main API keys secure.

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