Customer.io
Castle
Integrate Customer.io with Castle
Don't go through the pain of direct integration. RudderStack’s Customer.io integration makes it easy to send data from Customer.io to Castle and all of your other cloud tools.
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Easy Customer.io to Castle integration with RudderStackRudderStack’s open source Customer.io integration allows you to integrate RudderStack with your Customer.io to track event data and automatically send it to Castle. With the RudderStack Customer.io integration, you do not have to worry about having to learn, test, implement or deal with changes in a new API and multiple endpoints every time someone asks for a new integration.
Available via webhookSend event data to Castle by enabling webhooks in your RudderStack dashboard, then using our Transformations feature to shape the payload for the Castle API. Once enabled, RudderStack will forward events to Castle (note, this requires leveraging cloud API endpoints for Castle ).
Popular ways to use Castle and RudderStack
Query marketing dataImport analytics-ready marketing data into your warehouse. Select the data points you need and sync with the click of a button.
Break down marketing data silosCombine all of your marketing data to build a full understanding of the effectiveness of your campaigns.
Build more effective campaignsUnderstand which content is valuable to which segments and build higher-performing marketing campaigns.
Frequently Asked Questions
With Rudderstack, integration between Customer.io and Castle is simple. Set up a Customer.io source and start sending data.
Pricing Customer.io and Castle can vary based on the way they charge. Check out our pricing page for more info. Or give us a try for FREE.
Timing can vary based on your tech stack and the complexity of your data needs for Customer.io and Castle.
Use the Castle integration with other popular sources
About Castle

Castle is an account security and fraud prevention platform designed for businesses and developers. Its real-time threat detection and scoring capabilities allow you to block spam registrations and any account hacking attempts. With Castle, you can easily eliminate fake accounts and bots, and avoid credential stuffing to avoid any possibility of an account takeover attempt. Castle also allows you to automate your security flows, including account recovery processes, authentication mechanisms, end-user alerts, and more.

About Customer.io

Customer.io is a popular platform for sending automated messages and emails to your customers, with a focus on security and privacy. With Customer.io, you get complete information about your customers in one place, and use it to create personalized messages and campaigns for them.

RudderStack supports sending your events to CustomerIO from the cloud mode S2S (Server to Server) and native web SDKs by calling the relevant RudderStack APIs.