Customer.io integration

Marketing & Advertising · 3 actions · API key auth

Marketing automation platform for personalized customer experiences through email, SMS, and push notifications

Put Customer.io to work View Customer.io integration docs

Overview

The ModuleX Customer.io integration lets a ModuleX agent operate Customer.io on your behalf — running create and send actions across events and customers to segments — directly from a plain-English request, using your organization's own Customer.io credentials. No pre-built workflow is required: the agent picks the right Customer.io action for the task.

Customer.io is a marketing & advertising platform. ModuleX adds the agent layer: ask for an outcome and it selects and runs the right Customer.io action — or, when you want a repeatable process, the composer assembles a Customer.io workflow for you, streaming the nodes onto the canvas as it builds.

Ask the assistant

Drive Customer.io in plain English

Type what you want. A ModuleX agent picks the right Customer.io action — or chains several — and runs it. No workflow to build.

Creates a new customer profile or updates an existing one in Customer.io
resolves tocreate_or_update_customer
Sends a tracking event to a customer for triggering campaigns and segmentation
resolves tosend_event

Use cases

What you can automate with Customer.io

Create an or update customer straight from a requestcreate_or_update_customer
Send an event where it needs to gosend_event
Add a customers to segment on the flyadd_customers_to_segment

At a glance

Customer.io integration at a glance

VendorCustomer.io

CategoryMarketing & Advertising

Actions available3

AuthenticationAPI key

Uses your own credentialsYes

Works with the assistantYes

Works in the composerYes

Multi-step / tool-chainingYes

Technical referenceView docs

Integration version1.0.0

Last updatedJun 2026

Reference

All 3 Customer.io actions

Or Update Customers1

create_or_update_customer

Creates a new customer profile or updates an existing one in Customer.io

Events1

send_event

Sends a tracking event to a customer for triggering campaigns and segmentation

Customers to Segments1

add_customers_to_segment

Adds customers to a manual segment by their IDs (max 1000 per request)

See full parameters and response schemas in the Customer.io integration docs

Two ways

Two ways to use Customer.io in ModuleX

Ask the assistantType what you want done and a ModuleX agent picks the right Customer.io action and runs it — no workflow to build.

Compose a workflowNeed it to happen every time? Describe the process and the composer wires Customer.io into a repeatable workflow you can run on a schedule, from chat, or as an API.

Security

Connecting Customer.io

API keyCustomer.io uses API-key authentication. You provide your own Customer.io secret key; ModuleX encrypts it and scopes it to your organization, so your whole team can use Customer.io without re-authenticating.

Step-by-step setup in the Customer.io docs

Pairs well with Customer.io

Agents often chain Customer.io with these — connect them once and the agent can use all of them in a single task.

FAQ

Customer.io + ModuleX FAQ

A ModuleX agent can run any of Customer.io's 3 actions — across events and customers to segments — from a plain-English request, using your organization's own Customer.io credentials.

No. The agent selects the right Customer.io action from your prompt. A workflow is only needed when you want a repeatable process — and the composer builds that for you from a description.

Via your own Customer.io API key, stored encrypted and scoped to your organization.

3, spanning events and customers to segments.

Customer.io runs on your own credentials, so any Customer.io usage is billed by Customer.io directly. ModuleX meters the agent run — and if you connect your own model keys, there's no ModuleX markup on model usage.

Put Customer.io to work in ModuleX.

Connect Customer.io once with your own credentials and let your agent run all 3 actions on demand.

Put Customer.io to work View technical docs

Last updated: Jun 2026Browse all 175 integrations →