Customer.io

Some launches add a feature. This one changes how you work. The AI Agent builds entire campaigns from a single prompt. Goals, LLM Actions, Universal Search, WhatsApp, LINE, and a full UI redesign also shipped today. Eight new capabilities. One platform that gets smarter every time you use it. Join our live walkthrough April 16 to see it all in action: try.customer.io/webinars/mega-… And read the full breakdown of the biggest launch in Customer.io history: customer.io/learn/announce…

Highlight of our week: Customers loving our email marketing enough to shout us out on social 😍

Everyone is saying “it’s the harness, not the model.” But...no one is really explaining what that means. I wanted to understand harness engineering better, so on today's episode of How I AI, I built my own: a custom harness using @ClaudeDevs SDK to triage @sentry bugs, verify root cause, and ship fixes. The big unlock? Realizing a custom harness lets you stop micromanaging chats and get agents that do exactly what you want. Full tutorial now on YT: youtu.be/ofS-4RRw9zw

London, step away from the inbox for a night. Lifecycle Oasis lands at Shoreditch Treehouse next week: meditation, a panel, live music, food and drinks, and time with the AI Agent. Seats are limited, request your spot here: cust.io/4eBgbAl

Right message, right person, right moment has a whole new meaning ✨ Stay tuned for July 16.

Our VP of Product @mattwensing went on the Product Growth Podcast with @aakashgupta to show how he actually uses Claude at the leadership level—and how he keeps it from producing slop. His framing: Claude is a brilliant junior hire that races to the finish line before it understands the problem. So he feeds it context in layers and makes it earn the final output. Tune into his episode here: youtube.com/watch?v=yDeFGK…

Most marketing teams already use AI to write their emails. The work around the writing is still manual, though: campaigns set up from scratch, emails built one at a time, audiences segmented by hand. Our Senior AI Operations Manager, Giorgio Leonardi, is joining Jan Meinecke from 9x to show how that changes. See it live this Thursday, June 18th at 5:00 pm CET (11:00 am ET): luma.com/9x-8b5k?utm_so…

@Evelyn625174352 This is referencing our LLM actions feature, which we'll walk through live! Here's more details if you're curious: customer.io/learn/lifecycl…

@CustomerIO journeys making their own decisions is a big claim, june 17 better deliver

The fastest way to figure out where AI fits in your workflows is to watch someone actually use it. So on June 17, our team is walking through the specific ways we use AI for customer engagement, from building segments using our MCP server, to letting journeys make their own decisions with LLM actions. You'll also hear how the teams at Monarch and KORSIT are putting AI to work in their own workflows, and we'll leave plenty of time for live Q&A. Save your spot to join live, or sign up for the recording: cust.io/4dDdzBA

When a chat with the Agent nails it, save it as a skill—your conventions and playbooks captured once, reused every time. The Agent already knows Customer.io; skills teach it how *your* team works. ✨ docs.customer.io/ai/agent/skill…

Maybe one of the biggest points of AI overwhelm is knowing just how much AI can do. We like practical, tactical advice, so we're getting together a group of marketers to show exactly how they're using AI in their workflows and customer journeys. On June 17, we'll talk through: ✦ How marketers are building audiences and segments with AI, and where it actually saves them time ✦ Prompts that go past "make this sound more human" into campaign logic and journey decisions that adapt on their own ✦ Real personalization, routing, and automation use cases from our team and from customers Monarch and KORSIT ✦ A live Q&A to get your specific questions answered RSVP to join us live, or to get a copy of the recording: try.customer.io/webinars/ai-in…

Never thought I'd end up playing space invaders instead of working on a product newsletter but here we are... it was actually a nice little interruption thanks @CustomerIO @alphacolin 😁

Customer.io now has a CLI and MCP server—meaning you can create campaigns, manage segments, trigger broadcasts, and query customer data directly from your terminal or from inside Claude, Cursor, and Codex. No UI required. For technical marketers and growth engineers, it means your messaging infrastructure finally lives in the same environment as the rest of your work. Same rigor, same review process, same tooling. For developers shipping fast, it removes friction from day one. 👉 Read more about what the CLI and MCP unlock: customer.io/learn/product-…

If you want to know, ask @CustomerIO businessofapps.com/video/2026-mes…

The good folks at @CustomerIO have an opening for a Contract Senior Accountant. 👉 Find out more: link.peoplefirstjobs.com/1778183263828

Data storage is not the same thing as customer memory. Event-driven systems answer: what just happened? Memory-driven systems answer: given everything that's happened, what should happen next? That difference is separates good lifecycle marketing from great lifecycle marketing. Learn how: customer.io/learn/personal…

New in Customer.io: Goals Define the outcome you care about and the platform maps every campaign that influences it, with live, people-based attribution from day one. One goal connects to many campaigns. If five campaigns touched the same converted customer, that's one conversion—not five.

@patrickmoran @getinnermost @claudeai Sorry to hear this, Patrick! I passed this along to our team, and they have some updates they'll send your way today that will help with this!

Building @getinnermost has been so fun..., but I've got to say... some tools are very AI agent-friendly to build with, but @customerio is not one of them yet. I've spent countless hours being the human translator between @claudeai code and their agent. Painful

We're incredibly proud of our #5 spot on Newsweek's Global Most Loved Workplaces this year. 🥳 And even prouder of the people who made it real. 💚 Fully remote. 30+ countries. More than half the team joined in the last year and the culture somehow keeps getting better. We asked the team what working at Customer.io is actually like, and they shared what it takes to build a most-loved workplace. See what they had to say: customer.io/learn/how-we-w…

We've just added a new @CustomerIO API integration to our Emailify Figma Plugin! 🎉 Now you can automatically upload your custom HTML email designs directly from #Figma into your CustomerIO account's email templates with one click 📨🚀

Model Context Protocol is reshaping how AI systems access context. For engineering teams building on top of it, the implications go deeper than most realize. Customer.io VP of Engineering Paul Senechko is speaking at @Mixpanel MXP 2026 in San Francisco on May 12 on what this shift means in practice. Register here: mixpanel.com/mxp/san-franci…