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Customer.io integration

Customer messaging automation platform API. Send targeted emails, push notifications, SMS, and in-app messages based on user behavior. Track events, manage customer profiles, and orchestrate multi-channel campaigns. Build personalized customer journeys and lifecycle marketing automation.

13 toolsBasic authAPI docs

Common Customer.io use cases

  • Web analytics
  • Push analytics
  • Resubscription
  • GDPR compliance
  • Bulk segmentation
  • Campaign triggers
  • User registration
  • Pre-signup tracking
  • App uninstall cleanup
  • Unsubscribe processing

What you can do with Customer.io

Each of these is one operation on one endpoint, available both as a workflow step and as a tool an AI agent can call on its own. Nothing bundles several operations into one action, so what a run did stays readable afterwards.

Most endpoints run on the free plan. A few, mainly the ones that publish on your behalf, need a paid plan.

Customer, 5 operations

  • DELETEdelete_customer

    Deletes a customer and all associated data.

  • PUTidentify_customer

    Creates or updates a customer profile with attributes.

  • POSTmerge_customers

    Merges two customer profiles into one.

  • POSTsuppress_customer

    Suppresses a customer by deleting their profile and blocking their identifiers.

  • POSTunsuppress_customer

    Removes suppression to allow reuse of customer identifiers.

Event, 3 operations

  • POSTtrack_anonymous_event

    Tracks an anonymous event without customer identification.

  • POSTtrack_event

    Tracks a customer event for campaign triggers and analytics.

  • POSTtrack_page_view

    Tracks a page view event for a customer.

Device, 2 operations

  • PUTadd_device

    Adds or updates a device for push notifications on a customer.

  • DELETEdelete_device

    Removes a device from a customer to stop push notifications.

Segment, 2 operations

  • POSTadd_to_segment

    Adds customers to a manual segment.

  • POSTremove_from_segment

    Removes customers from a manual segment.

Push metric, 1 operation

  • POSTreport_push_metrics

    Reports push notification metrics from client devices.

Use Customer.io from Claude Code, Cursor or Codex

Connect Customer.io in LiveContext, create an API key in Settings, then add the LiveContext MCP server to your client. Its Customer.io operations become tools the client can call, next to every other integration you connected.

Claude Code
claude mcp add --transport http livecontext https://livecontext.ai/mcp --header "X-API-Key: YOUR_API_KEY"
Codex (~/.codex/config.toml)
[mcp_servers.livecontext]
url = "https://livecontext.ai/mcp"

[mcp_servers.livecontext.http_headers]
"X-API-Key" = "YOUR_API_KEY"
Cursor, Claude Desktop and other JSON configs
{
  "mcpServers": {
    "livecontext": {
      "type": "http",
      "url": "https://livecontext.ai/mcp",
      "headers": {
        "X-API-Key": "YOUR_API_KEY"
      }
    }
  }
}

Set up the MCP server step by step

How to connect Customer.io

  1. Create your workspace

    Sign up free. Nothing to install.

  2. Connect Customer.io once

    Add your Customer.io connection in Settings. Every tool from this integration reuses it, and secrets are encrypted at rest and visible only to you.

  3. Describe the job in chat

    The workflow builds itself in front of you and picks the endpoints it needs. Drag the steps yourself on the canvas whenever you would rather be explicit.

Customer.io integration FAQ

What can you do with the Customer.io integration?
LiveContext exposes 13 operations on Customer.io, covering customer, event, device and segment. Common uses include Web analytics, Push analytics and Resubscription.

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