If you searched "klaviyo ai agent", almost everything on the first page was written by Klaviyo. That is not a criticism, their documentation is genuinely good, but it does mean nobody on that page will tell you where the agents stop. We read Klaviyo's help center, product pages, and announcements so you get the whole picture in one place: what Customer Agent and Composer actually do, what they require, and which work they will never see.
What Klaviyo actually ships under "AI agent"
Klaviyo brands its AI layer K:AI, and by mid-2026 it spans two agents that matter to a store operator, plus a shopping assistant that personalizes on-site recommendations.
- Customer Agent is the service side: an autonomous agent that resolves shopper inquiries on your behalf across web chat, email, SMS, and WhatsApp. It is pre-trained on your brand, policies, and customer data, and Klaviyo's own FAQ claims 65 percent of questions get resolved without a human agent involved.
- Composer is the marketing side: an agent that continuously analyzes your account, surfaces revenue opportunities, and builds campaigns, flows, audiences, and copy from a brief, using your data and brand voice. Everything it creates is staged for review before it reaches a customer.
The two share one customer profile. When Customer Agent resolves a conversation, what it learned enriches the record Composer markets against. That flywheel is Klaviyo's real pitch, and it is also the boundary of the product: the flywheel spins entirely inside Klaviyo.
Customer Agent: capabilities against requirements
The capabilities list is genuinely broad for an in-suite agent, but each channel has its own prerequisites, and the fine print matters when you plan a rollout.
| What Customer Agent does | What it needs from you |
|---|---|
| Tracks orders and answers shipping ("where is my order") questions in real time | Your commerce data connected to Klaviyo so order status is visible |
| Answers product and brand questions, recommends products | An accurate catalog and knowledge base; it answers from what you feed it |
| Processes returns, exchanges, order edits, promotions, loyalty-point checks | The relevant integrations and policies configured, so "doing" is permitted, not just "answering" |
| Runs on web chat, email, SMS, and WhatsApp, in the customer's language | Each channel configured separately: web chat and inbound email in settings, a two-way SMS sender, and WhatsApp within Meta's messaging rules |
| Hands off to a human when a conversation needs one | Someone on your side to hand off to, with coverage for the hours the agent worked alone |
| Custom skills and tools beyond the out-of-the-box set | Building them yourself; custom skills are in open beta for all Customer Agent accounts |
Setup requires an Owner, Admin, or Manager role in Klaviyo, and the honest sequencing is data first, agent second: an agent answering from a stale catalog is confidently wrong at scale. The WhatsApp row deserves special attention, because Meta's platform rules (the 24-hour service window, template messages) apply to Klaviyo's agent the same as everyone else's; our WhatsApp AI agent guide covers those rules in detail.
Composer: the marketing agent, briefly
Composer flips the direction of effort. Instead of you digging through flows and segments for the next win, it surfaces opportunities ranked by expected revenue impact, explains its reasoning, and drafts the campaign: audience, copy, channels, timing. Two design choices stand out from Klaviyo's own materials: it explains why it recommends what it recommends, and nothing publishes without your approval. Those are the right defaults, and they mirror what we tell readers about agents versus workflow automation generally: autonomy in the analysis, a human gate on the action.
What we found researching this post
Two observations from doing the reading, both useful if you are evaluating Klaviyo from outside the US.
First, the sourcing quality is unusually good. Klaviyo's help center is server-rendered, plainly written, and fetchable by automated research tools, which is exactly what you want from a vendor whose agent you are about to trust with customer conversations. Compare that with vendors whose pricing pages render only in a browser; we have watched naive fetchers invent conclusions from empty pages before.
Second, one of Klaviyo's own announcement URLs that ranks for this exact search returned a 404 for us: the site geo-redirected our request to its UK locale, and the localized path did not exist. A browser in another region may sail through. It is a small thing, but it is a live example of why we verify links from the reader's side rather than trusting a search snippet, and why any research agent you run should treat a redirect as a result to check, not a success.
The gap: work the Klaviyo agents cannot see
Everything above runs inside Klaviyo, on Klaviyo's data. A store's week contains a lot of work that is neither a shopper conversation nor a campaign, and none of these fall to Customer Agent or Composer.
- Catalog and data hygiene upstream: the product descriptions, stock status, and policy pages the agents answer from have to be right before the agents touch them. Garbage in becomes confident garbage out, at 65 percent autonomy.
- Cross-tool reporting: reconciling what Klaviyo claims against Stripe payouts and storefront analytics is a weekly job the in-suite agents by definition cannot referee; teams hand it to a revenue reporting agent instead.
- Churn signals outside the inbox: failed payments and quiet cancellations live in your billing stack, which is its own agent job, not a marketing flow.
- Competitor and market watching: what changed on rival stores this week is invisible to a tool that only reads your account.
- Marketplace channels: reviews and buyer messages on eBay or Amazon never pass through Klaviyo, and review response on your own store is a separate surface too.
- The owner's digest: "what happened across everything this week, and what needs me" is a question that spans every tool you run, which is exactly why it suits a platform agent rather than any single suite.
How to decide, by situation
- You are on Klaviyo and support volume is the pain: turn Customer Agent on for one channel, feed it a verified knowledge base, and measure the handoff rate before expanding to all four channels.
- You are on Klaviyo and marketing throughput is the pain: Composer is the feature to evaluate; judge it on whether its surfaced opportunities beat your own backlog, not on the demo.
- You are not on Klaviyo: nothing here is a reason to migrate by itself. Suite agents are a retention feature; they deepen the suite you already chose, a pattern we also see in Mailchimp's AI segmentation.
- Your pain list is mostly in the gap section above: that work needs an agent that reads across tools, and it coexists happily with Klaviyo's agents rather than competing with them.
Where Gravity fits next to Klaviyo
Gravity is not an email suite and does not want to be your marketing platform. It is the agent layer for the cross-tool work in the gap list. Describe the job in plain words: "compare this week's Klaviyo revenue claims against Stripe, flag any product page whose stock status contradicts the catalog, and give me a Monday digest." The right expert-built agent returns the finished result in about 60 seconds, with outbound actions held for your approval. Gravity starts free with one agent; paid plans start at $20 per month and include $20 of usage, with the option to add more as your workload grows. Run Klaviyo's agents inside Klaviyo, and an agent platform across everything else; the two boundaries barely overlap.
Frequently asked questions
What is the Klaviyo AI agent?
Klaviyo ships two under its K:AI brand. Customer Agent resolves shopper inquiries autonomously across web chat, email, SMS, and WhatsApp, handling orders, returns, subscriptions, and product questions with human handoff. Composer is a marketing agent that analyzes your account and builds campaigns, flows, and segments from a brief, with everything staged for approval.
How much of support does Klaviyo's Customer Agent actually handle?
Klaviyo's own materials claim 65 percent of questions are resolved without a human agent involved. Treat that as a vendor-reported figure: your number depends on how clean your catalog, policies, and knowledge base are, because the agent answers from your data, not from general knowledge.
What do I need before turning Customer Agent on?
An Owner, Admin, or Manager role in Klaviyo, plus per-channel setup: web chat and inbound email configured in settings, a two-way SMS-enabled sender for SMS, and WhatsApp operating within Meta's messaging rules. Practically, you also need an accurate catalog and policy pages, since those are the ground truth it answers from.
Is Composer available to everyone?
Klaviyo markets Composer publicly as its AI marketing agent, and custom skills and tools for Customer Agent are in open beta for all Customer Agent accounts. Packaging changes fast in this category, so check your own Klaviyo account for what your plan includes rather than relying on any third-party summary, including this one.
Does Klaviyo's AI agent replace a customer support tool?
For a store whose support is mostly order status, returns, and product questions, it can carry most of the volume within Klaviyo's channels. It does not cover marketplaces like eBay or Amazon, phone support, or anything happening outside Klaviyo, and it needs a human on the other side of its handoffs.
Do I still need another agent platform if I use Klaviyo's agents?
They solve different layers. Klaviyo's agents work inside Klaviyo on Klaviyo's data. Cross-tool work, reconciling reports against billing, watching competitors, marketplace messages, and the weekly all-systems digest, needs an agent that reads across your stack. Most stores that run both use each for what it can see.
Sources
- Klaviyo Help Center, "Getting started with Customer Agent", help.klaviyo.com, backs the channel list, capability set, per-channel prerequisites, role requirements, language support, and the open-beta status of custom skills. Fetched and verified during this run.
- Klaviyo, "K:AI Customer Agent", klaviyo.com, backs the 65 percent vendor-reported resolution claim, the pre-training on brand and customer data, the task-completion capabilities (returns, order edits, promotions, loyalty points), and the AI shopping assistant surface. Fetched and verified during this run.
- Klaviyo, "Composer", klaviyo.com, backs Composer's opportunity-surfacing, campaign-building, reasoning transparency, and approval-gated publishing. Fetched and verified during this run.