The platform that gets smarter every time you use it
Customer.io brings your data, messaging, and AI together into a single orchestration layer, so your team can launch faster, adapt without limits, and prove ROI.
Platform uptime
Messages sent in 2025
Global support coverage
Customer satisfaction score
AI that’s built in, not bolted on
Sharper audiences. Surface high-intent segments and automatically uncover behavioral patterns in your first-party data.
Smarter journeys. Build and optimize cross-channel workflows from a conversation, with logic the Agent configures for you.
Stronger content. Draft, refine, and iterate on messaging while the Agent maintains your brand voice and guardrails.
Everything you need
to build smarter customer engagement
AI-native tools, human-level control
Easily collect, unify and route your first-party data
Create a flexible, real-time data foundation that adapts to your architecture, so journeys always run on the freshest data.
- Sync from your data warehouse
- Connect unlimited sources and destinations
- Build custom object relationships
Target the right people with real-time precision
Define segments using any combination of profile data, events, and behaviors. Segments update in real time as your data changes.
- Describe a segment for the Agent to build
- Create real-time behavioral segments
- Sync audiences to ad platforms
Create beautiful, on-brand messages fast
Craft responsive content with intuitive visual tools and developer-friendly control. Let the Agent assist with copy drafting and editing.
- Translate messages into any language with AI
- Personalize content with Liquid and customer data
- Create reusable components (standard & custom)
Orchestrate cross-channel workflows that react in real time
Build multi-step journeys that respond to customer behavior in real time across email, SMS, push, in-app, and more.
- Describe a journey for the Agent to build
- Trigger workflows from any customer event
- Branch logic across multi-channel
Measure what matters, not just what’s easy
Go beyond open rates. Connect every campaign to the business outcomes you care about with conversion goals, A/B testing, and AI-powered insights.
- Ask the Agent how any campaign is performing
- Track conversions tied to business outcomes
- Run A/B and cohort tests within workflows
Your AI tools already work here
Open by design, intelligent by default. Your agent works with the same full access as your team—the whole platform, not a limited toolset.
Agent
Carry context from one task to the next with an Agent that's built directly into the platform.
MCP server
Connect Claude, Cursor, or any MCP-compatible tool directly to Customer.io.
APIs
Move customer data with a single API call or webhook, whether the source or destination is on our platform or not.
CLI
Give AI coding assistants and automation scripts complete access to your workspaces. Built for terminal-first workflows and agent-driven tools like Claude Code.
Omnichannel messaging that delivers outcomes
Supercharge your messaging
- 14-day free trial
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- Cancel anytime