VantegrateNative API integrationIntegrate Klaviyo with AI agentsthat recover carts on WhatsApp
Vantegrate's AI agents connect to your account through the official Klaviyo API: they read your profiles, events and segments to personalize every message, recover the cart and handle post-purchase questions on WhatsApp, and write every interaction back to the profile. Your data keeps living in your Klaviyo account.
How the data flows
What does it mean to integrate Klaviyo with Vantegrate's AI agents?
Integrating Klaviyo with Vantegrate's AI agents means that an agent, such as the WhatsApp recovery agent, connects to your account through the official Klaviyo API and works with real data: it reads the customer's profile, the abandoned-cart event and the segment, and writes that customer a one-to-one message, using OAuth or a private key plus webhooks, instead of sending a generic blast.
That is different from a mass send or a bot with fixed scripts. The agent checks the current data in your account, decides the offer based on the customer's history and logs the result as an event on the same profile. Your profile data stays in your Klaviyo account: the agent reads and updates it, it doesn't take it anywhere else.
What do you want to connect to your Klaviyo?
Pick what you need and we'll write the message for you.
1 · Pick what to solve
2 · What our team receives
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What data moves between Vantegrate and your Klaviyo
The agent works on the resources of the Klaviyo API in real time: it reads your profiles and segments to personalize, and writes every interaction as an event where it belongs.
Profiles, events and segments
The agent reads the customer's unified profile, their events (an abandoned cart, a purchase) and the segment they belong to in order to personalize, and writes every interaction back.
Conversations and activity
Every WhatsApp chat is logged as an event on the profile, with its context, so the next flow and your team pick up with the full history.
Real-time events
With Klaviyo webhooks, an abandoned cart or a back-in-stock alert triggers a proactive follow-up from the agent, without anyone entering it by hand.
How the integration works, step by step
Vantegrate handles the setup and rollout. Your team authorizes, validates and starts using it.
Connection through the official API
We connect to the Klaviyo API over OAuth, or with a private key for a single account, on the current API revision. No scrapers and no fragile bridges.
Scopes and data model
We define the scopes and which profiles, events, metrics and segments the agent uses to personalize, recover carts and log every conversation.
Webhooks and channel
We set up the webhooks that trigger the agent's workflows, such as an abandoned cart, and the WhatsApp channel that handles the conversation.
Validation with real data
We test with your real profiles and events, validate with your marketing and IT teams, and roll out in phases.
An AI agent compared with an automated Klaviyo flow
Klaviyo runs very capable automated flows: abandoned cart, post-purchase, win-back, back in stock. What a flow doesn't do is hold a conversation that understands the customer's reply, clears up the doubt that is holding back the purchase and closes the sale in the same chat. Klaviyo also has its own AI agent, Customer Agent, which answers shopper questions on web chat, email, SMS and WhatsApp and hands off to a person when needed, according to Klaviyo's help center. The layer Vantegrate's agent adds on top of your account is recovery and the sale.
The difference shows in every recovery: instead of a fixed message, the agent reads the profile and the cart event, answers the real objection, adjusts the offer to the segment and logs the result as an event. WhatsApp is a native Klaviyo channel, with its template categories and its service window, and the agent works within those rules instead of skipping them. One of them matters in the US: Meta doesn't deliver WhatsApp marketing templates to US phone numbers, as Klaviyo explains, so with US shoppers the agent works in the conversations they start.
| Dimension | Automated Klaviyo flow | AI agent on Klaviyo |
|---|---|---|
| What it solves | A message based on a rule | A conversation that understands and replies |
| Connection | Inside Klaviyo | OAuth or a private key against the API |
| Context | Trigger and template | Live profile, event and segment |
| Objections | Doesn't address them | Answers the doubt holding back the purchase |
| Close | Sends the shopper to the site | Builds the sale in the same chat |
Comparison of patterns; the exact scope is defined with your team based on your account, your plan and your flows.
Your data stays in your account: the agent reads and updates your Klaviyo through the API; it doesn't move your database anywhere else. The connection uses the scopes you authorize, the private key never travels to the browser, and every operation is logged and auditable.
You've seen how it connects. Want to walk through your case?
Tell us how your Klaviyo is set up and we'll tell you what data we need and where the agent connects.
An agent connected to your Klaviyo vs. a standalone tool
| Standalone AI tool | Agent connected to your Klaviyo | |
|---|---|---|
| Data source | A copy that drifts | Your source of truth, live |
| Where your data lives | In a third-party system | In your environment, encrypted end to end |
| Result of each operation | Stuck in another app | Written back to your Klaviyo |
| Permissions and audit | Broad and hard to audit | Least-privilege scope and an audit trail |
| Reaching production | Often stalls as a pilot | Validated, phased rollout |
Why add a conversational agent on top of your Klaviyo
Third-party figures, each with its published source, to size the context. None of them is a Vantegrate result.
~70%
Of e-commerce shopping carts are abandoned before purchase, on average
95%
Of generative AI pilots never reach production with measurable business impact
Cart abandonment is an average of multiple studies compiled by Baymard. The MIT NANDA figure reflects the gap between experimenting with AI agents and running them in production.
Which agents run on your Klaviyo
Every product in the suite uses the same integration through the official API: it works with your account's data in real time and logs the result where it belongs.
Revio
Marketing and recovery agent: uses the profiles, events and segments already in your Klaviyo to recover carts and reactivate customers, and runs on WhatsApp, a strong fit for shoppers in markets where WhatsApp is the default channel.
Explore Revio
Sellium
Sales agent on WhatsApp: answers shoppers, works through the objection holding back the purchase and builds the sale in the chat with the profile's context, and logs every interaction as an event in your account.
Explore SelliumThe integration doesn't take your data anywhere
The principle is simple: AI comes to your data, not your data to the AI. The agent reads and updates your Klaviyo through the official API, with the scopes you authorize, and the agents run on certified cloud infrastructure.
- Connection through the official Klaviyo API with OAuth (or a private key for a single account), with no scrapers and no fragile bridges.
- The agent reads and updates your profiles, events and segments; your database stays in your Klaviyo account.
- Access limited by scopes and least-privilege permissions, with traceability of every operation.
- The agents run on Salesforce or Oracle Cloud Infrastructure, whose SOC 2 and ISO 27001 certifications belong to those platforms, not to Vantegrate or Klaviyo.
Frequently asked questions about the Klaviyo integration
What marketing and IT teams usually ask before connecting an AI agent to their account.
How do I integrate Klaviyo with an AI agent?
How do I integrate Klaviyo with an AI agent?
Through a connection to the official Klaviyo API using OAuth and webhooks. The agent reads your profiles, events and segments, recovers the cart and handles the conversation on WhatsApp, and writes every interaction back to the profile. Vantegrate handles the setup and rollout; your team authorizes the scopes, validates and starts using it. Learn about the marketing agent in Revio.
Is Klaviyo only for email?
Is Klaviyo only for email?
No. Klaviyo unifies the customer profile and orchestrates several channels on top of that same profile: email, SMS, WhatsApp, push and RCS. WhatsApp is a native channel, with Meta-approved templates for marketing or transactional messages and a 24-hour service window that opens when the customer writes in. That's why Vantegrate's agent works on WhatsApp with your Klaviyo data, not only over email.
Do I need a private key or OAuth to connect Klaviyo?
Do I need a private key or OAuth to connect Klaviyo?
It depends on how many accounts the integration serves. For a single account, a server-side private key is enough, and it never travels to the browser; an integration that serves several accounts uses OAuth, with an access token and a refresh token. Either way, access is limited by scopes. The site's public key is only for tracking from the browser and doesn't read sensitive data.
Do my profiles and events leave Klaviyo?
Do my profiles and events leave Klaviyo?
The agent reads and updates your account through the API; it doesn't copy your database anywhere else. Your profiles, events and conversations stay in your Klaviyo account, and access uses scopes and least-privilege permissions and is logged. The principle is that AI comes to your data, not your data to the AI.
Revio, the marketing and recovery agent
How the agent recovers carts and reactivates customers on WhatsApp with your account's data.
Learn moreAll integrations
The full map: the CRMs, e-commerce platforms and tools the AI agents connect to.
Learn moreAI agents for enterprises
The full Vantegrate suite: sales, marketing, documents, data and logistics.
Learn moreLet's connect AI agents to your Klaviyo
Tell us how your account is set up and we'll show you what the agent reads, which scopes we request and how cart recovery on WhatsApp works. A 30-minute conversation, no commitment.
Francisco Morales, co-founder, takes your call. We reply on WhatsApp within 4 business hours, no strings attached.
