Are integrations included with my plan?

Yes. Every plan includes access to popular sources and destinations. You can find all available integrations in our integration directory.

Does Customer.io support MCP (Model Context Protocol)?

Yes. Customer.io offers an MCP server that gives AI agents like Claude full read, write, and create access to your campaign, segment, and customer data, so you can diagnose issues and take action directly from an MCP client.

Can Customer.io connect to my data warehouse or CRM?

Yes. Customer.io ingests first-party data through reverse ETL, pre-built integrations, APIs, SDKs, and webhooks, letting you sync data from warehouses, CRMs, and other tools directly into customer profiles and campaigns.

Is Customer.io compliant with GDPR, HIPAA, and other data privacy regulations?

Yes. Customer.io meets GDPR, SOC 2 Type II, HIPAA, and CCPA requirements, and lets you restrict data access by user role and block restricted personal data before it enters your workspace.

Data & integrations

Fuel growth with unified data

Customer.io helps you unify, enrich, and activate customer data, enabling AI engagement across every channel.

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The customer engagement platform trusted by 9,000+ brands

Our difference

Connect, model, and activate
your data your way

Integrate your way

Native integrations, Reverse ETL, APIs, SDKs, MCP clients, CLI, and webhooks.

Ecosystem-ready

Designed to work with your growth stack, including AI tools.

Data flexibility

Support for people, events, custom objects, and other attributes.

Agent assistance

Establish and troubleshoot data flows and integrations with the Agent.

“

Customer.io was super easy to start with, and also super robust to scale. Some platforms are either super robust but difficult to start, or they're very simple but you can't do complex things. We needed flexibility to get data in and out easily, and the capability to handle sophisticated use cases.

Marcelo Martinez

Founder & CEO / Raidar.io

Integrations

From A to B faster

AI-ready customer data for intelligent
messaging.

View integrations

Actable

Data out

Hightouch

Data in

Mixpanel

Data out

HubSpot

Data in

Google Ads (Web)

Data out

Actable

Data out

Hightouch

Data in

Mixpanel

Data out

HubSpot

Data in

Google Ads (Web)

Data out

Actable

Data out

Hightouch

Data in

Mixpanel

Data out

HubSpot

Data in

Google Ads (Web)

Data out

Actable

Data out

Hightouch

Data in

Mixpanel

Data out

HubSpot

Data in

Google Ads (Web)

Data out

Salesforce

Data in

Vibe.co

Data out

Algolia

Data in

Segment

Data out

TypeForm

Data in

Salesforce

Data in

Vibe.co

Data out

Algolia

Data in

Segment

Data out

TypeForm

Data in

Salesforce

Data in

Vibe.co

Data out

Algolia

Data in

Segment

Data out

TypeForm

Data in

Salesforce

Data in

Vibe.co

Data out

Algolia

Data in

Segment

Data out

TypeForm

Data in

Attio

Data out

Google Ads

Data in

Amazon S3

Data out

Intercom

Data in

LiveLike

Data out

Attio

Data out

Google Ads

Data in

Amazon S3

Data out

Intercom

Data in

LiveLike

Data out

Attio

Data out

Google Ads

Data in

Amazon S3

Data out

Intercom

Data in

LiveLike

Data out

Attio

Data out

Google Ads

Data in

Amazon S3

Data out

Intercom

Data in

LiveLike

Data out

Key features

Everything you need to build automations
that drive business outcomes

Sources

Bring all your data in

Quickly ingest first-party data via reverse ETL, pre-built integrations, APIs, SDKs, webhooks, and more.

View sources

Leverage your data for transactional and marketing messages
Turn CRM records into personalized campaigns
Transform web and mobile events into customer journeys

Destinations

Keep all your data in sync

Connect to your growth stack, hydrating tools like analytics platforms, CRMs, MCP clients, and data warehouses with the latest campaign data.

View destinations

Tie campaign engagement to product adoption
Trigger internal workflows from CRM updates
Extend MCP clients with full read, write, and create access

Security

Security you can trust

Protect customer data with enterprise-grade safeguards for both your team and AI agents.

Security + Compliance

Stay compliant with GDPR, SOC 2 Type II, HIPAA, CCPA + more
Set rules to proactively block restricted personal data
Keep data safe by restricting access by user role

Additional features

Actions simplified
Transform data to fit your needs with flexible filtering and mapping actions.
Data index
See the data you’re using, where you use it, and which source it came from.
Data replay
Add new destinations and resend past data without making new API calls.
Detailed event logs
Track, diagnose, and repair issues impacting the flow of data across your environment.
Public APIs
API-first platform that works with all your data, regardless of source or destination.
US and EU data centers
Select the region for storing your customers' data based on your business needs.
Role-based access
Control who can see, edit, or export data with granular, role-based permissions.
Identity resolution
Automatically merge anonymous and identified activity into a single, accurate profile.

40%

Email engagement increase

2.7x

End-user conversion rate

“

Now we have all of the data and tools we need, which enables us to quickly build [gift notification emails] in the campaign builder with no additional engineering support required.