---
title: "Customer.io integration"
url: "https://unified.to/integrations/customerio"
description: "Customer.io API integration and MCP server via Unified.to's real-time unified API."
---
# Customer.io API integration & MCP server

Connect Customer.io to your application with Unified.to's real-time unified API and MCP platform. One API, data model, authorization flow, and webhook system — no per-integration code.

- **Categories:** Marketing
- **Website:** https://customer.to
- **Provider API docs:** https://docs.customer.io/api/

## Supported unified data models

- MARTECH Member
- MARTECH List
- MARTECH Campaign
- MARTECH Report

## Links

- [Add Customer.io to your app](https://app.unified.to)
- [Feature support](https://docs.unified.to/martech/integrations)
- [All integrations](https://unified.to/integrations.md)