Customer.io Automation

---
name: Customer.io Automation
description: "Automate customer engagement workflows including broadcast triggers, message analytics, segment management, and newsletter tracking through Customer.io via Composio"
requires:
  mcp:
    - rube
---

# Customer.io Automation

Automate customer engagement operations -- trigger targeted broadcasts, retrieve delivery metrics, manage audience segments, list newsletters and transactional templates, and inspect trigger execution history -- all orchestrated through the Composio MCP integration.

**Toolkit docs:** [composio.dev/toolkits/customerio](https://composio.dev/toolkits/customerio)

---

## Setup

1. Connect your Customer.io account through the Composio MCP server at `https://rube.app/mcp`
2. The agent will prompt you with an authentication link if no active connection exists
3. Once connected, all `CUSTOMERIO_*` tools become available for execution

---

## Core Workflows

### 1. Trigger a Broadcast
Manually fire a pre-configured broadcast to a specific audience with personalization data.

**Tool:** `CUSTOMERIO_TRIGGER_BROADCAST`

| Parameter | Type | Required | Description |
|-----------|------|----------|-------------|
| `broadcast_id` | integer | Yes | Broadcast ID from Customer.io Triggering Details |
| `ids` | array | No | List of customer IDs to target |
| `emails` | array | No | List of email addresses to target |
| `recipients` | object | No | Complex filter with `and`/`or`/`not`/`segment` operators |
| `per_user_data` | array | No | Per-user personalization with `id`/`email` + `data` |
| `data` | object | No | Global key-value data for Liquid template personalization |
| `data_file_url` | string | No | URL to JSON file with per-line user data |
| `email_add_duplicates` | boolean | No | Allow duplicate recipients (default: false) |
| `email_ignore_missing` | boolean | No | Skip people without emails (default: false) |
| `id_ignore_missing` | boolean | No | Skip people without customer IDs (default: false) |

**Important:** Provide exactly ONE audience option: `recipients`, `ids`, `emails`, `per_user_data`, or `data_file_url`. Rate limit: 1 request per 10 seconds per broadcast.

---

### 2. Retrieve Message Delivery Metrics
Fetch paginated delivery metrics for messages with filtering by campaign, type, and time window.

**Tool:** `CUSTOMERIO_GET_MESSAGES`

| Parameter | Type | Required | Description |
|-----------|------|----------|-------------|
| `type` | string | No | Message type: `email`, `webhook`, `twilio`, `slack`, `push`, `in_app` |
| `metric` | string | No | Metric: `attempted`, `sent`, `del

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