AI that works for you
Your AI can do anything you'd do by clicking or typing in Customer.io. That means you can have it build automations, draft messages, analyze performance, and so on. You can do this all through our built-in agent, or connect your own tools.
More AI features →Customer.io is a platform for sending automated messages — email, push notifications, in-app and web messages, SMS, Slack, and webhooks — driven by the profile and event data you send it. These docs cover setting up a workspace, getting your data in, grouping people into segments, building automations, designing and sending messages, and reading the results. They also cover the REST APIs, mobile SDKs, and data pipeline integrations you use to connect Customer.io to the rest of your stack. If you're new, start with the quick start guide.
Start building
Claude Code
Make sure your account admin has turned on Customer.io MCP.
- Install the Customer.io plugin. Sign in on your first prompt.
/plugin marketplace add customerio/claude-plugin /plugin install customerio@customerio - Prompt your AI:
“List the workspaces in my account.”
ChatGPT
Make sure your account admin has turned on Customer.io MCP.
- Go to Plugins and install Customer.io.
- Click Connect and sign in.
- Prompt your AI:
“List the workspaces in my account.”
Cursor
Make sure your account admin has turned on Customer.io MCP.
- Install Customer.io from the Cursor Marketplace.
- Connect the Customer.io server under Settings > Tools & MCP.
- Prompt your AI:
“List the workspaces in my account.”
CLI
- Install the CLI and the skills that teach your AI assistant to use it:
npm install -g @customerio/cli cio skills install - Prompt your AI:
“List the workspaces in my account.”
What's new
More releases- Aug 26, 2026 Chain multiple delays together in a single Wait Until block
- Aug 21, 2026 Support in-app messages for multiple mobile apps in the same workspace
- Aug 18, 2026 Use Customer.io AI in Slack
- Aug 14, 2026 Design Studio: new and improved canvas editing experience
- Aug 6, 2026 Control how fast your automations send messages



