Marketing Automation
Klaviyo
API integration
Ship Marketing Automation features without building the integration. Full Klaviyo API access via Proxy, normalized data through Unified APIs — extend models and mappings to fit your product.
Talk to usUse Cases
Why integrate with Klaviyo
Common scenarios for SaaS companies building Klaviyo integrations for their customers.
Sync survey and quiz responses into Klaviyo for personalized campaigns
Form and survey builder SaaS companies can push respondent data into their customers' Klaviyo accounts as enriched Contacts with Tags, enabling merchants to trigger hyper-personalized email and SMS flows based on quiz answers without any manual CSV work.
Suppress promotional messaging during open support tickets
Helpdesk and customer support platforms can update Klaviyo Contact properties and Tags in real time when tickets are created or resolved, letting merchants automatically suppress promotional campaigns for customers who are mid-issue — eliminating one of eCommerce's most common CX failures.
Keep loyalty and rewards data in sync with marketing audiences
Loyalty and rewards platforms can continuously update Klaviyo Contacts with points balances, tier changes, and reward statuses, so merchants can build dynamic Segments like 'Points Expiring Soon' and drive repeat purchases through automated lifecycle campaigns.
Route event attendees into targeted post-event follow-up flows
Webinar and virtual event platforms can automatically push registrants into Klaviyo Lists and tag Contacts as 'Attended' or 'No_Show' after events, giving merchants a seamless path to post-event nurture campaigns without manual data handling.
Use Klaviyo Segments to personalize in-app experiences
B2B SaaS products can read their customers' Klaviyo Segments to adapt their own UI — for example, a customer service tool routing 'VIP Segment' members to priority queues, or a personalization engine changing on-site content based on marketing audience membership.
What You Can Build
Ship these features with Truto + Klaviyo
Concrete product features your team can ship faster by leveraging Truto’s Klaviyo integration instead of building from scratch.
Automatic Contact enrichment pipeline
Push user attributes, custom properties, and behavioral metadata from your product into your customers' Klaviyo Profiles so their marketing teams can build dynamic audiences without any manual data entry.
Real-time Tag-based suppression controls
Apply and remove Tags on Klaviyo Contacts based on events in your app — like open tickets, pending refunds, or onboarding state — so merchants can suppress or trigger marketing automations contextually.
One-click List subscription management
Let your users map actions in your product (form submissions, event registrations, feature opt-ins) to specific Klaviyo Lists, handling subscribe and unsubscribe operations automatically and in compliance with consent requirements.
Segment-aware in-app personalization
Read your customers' Klaviyo Segments and surface that audience intelligence inside your product — enabling features like priority routing, dynamic UI badges, or segment-based content targeting.
Bi-directional Contact sync dashboard
Give your users a single view that shows which of their end-users exist in Klaviyo, what Lists and Segments they belong to, and what Tags are applied — all without leaving your product.
Self-serve Klaviyo connection via embedded auth
Ship a native 'Connect Klaviyo' button in your settings page using Truto's auth infrastructure, so your customers can link their Klaviyo accounts in seconds without your team managing OAuth flows or API keys.
Unified APIs
Unified APIs for Klaviyo
Skip writing code for every integration. Use Truto’s category-specific Unified APIs out of the box or customize the mappings with AI.
Unified Marketing Automation API
How It Works
From zero to integrated
Go live with Klaviyo in under an hour. No boilerplate, no maintenance burden.
Link your customer’s Klaviyo account
Use Truto’s frontend SDK to connect your customer’s Klaviyo account. We handle all OAuth and API key flows — you don’t need to create the OAuth app.
We handle authentication
Don’t spend time refreshing access tokens or figuring out secure storage. We handle it and inject credentials into every API request.
Call our API, we call Klaviyo
Truto’s Proxy API is a 1-to-1 mapping of the Klaviyo API. You call us, we call Klaviyo, and pass the response back in the same cycle.
Unified response format
Every response follows a single format across all integrations. We translate Klaviyo’s pagination into unified cursor-based pagination. Data is always in the result attribute.
FAQs
Common questions about Klaviyo on Truto
Authentication, rate limits, data freshness, and everything else you need to know before you integrate.
What authentication method does Klaviyo use?
Klaviyo uses API key-based authentication. Your end users generate a private API key from their Klaviyo account settings. Truto handles the secure storage and injection of these keys so your application never manages raw credentials directly.
Which Klaviyo objects are covered by Truto's Unified Marketing Automation API?
The Unified Marketing Automation API maps to four core models: Contacts (Klaviyo Profiles), Lists, Segments, and Tags. These cover the most common integration patterns — profile enrichment, list management, audience reading, and tagging for workflow control.
Are Klaviyo-specific tools available out of the box?
Klaviyo-specific tools beyond the Unified API models are built on request. If you need access to additional Klaviyo endpoints — such as Events/Metrics or Flows — Truto can build custom tools tailored to your use case.
How does Truto handle Klaviyo's API rate limits?
Truto manages rate limiting, retries, and pagination automatically at the platform level. You interact with a consistent API interface and Truto ensures requests to Klaviyo stay within allowed limits, handling backoff and retry logic transparently.
Can I write custom properties to Klaviyo Profiles through the Unified API?
Yes. When creating or updating Contacts via the Unified Marketing Automation API, you can pass custom properties (e.g., loyalty_score, subscription_tier) that map to Klaviyo's custom profile properties. These are immediately usable by merchants for segmentation and flow triggers.
Are Klaviyo Segments writable through the API?
No — Klaviyo Segments are dynamic, rule-based audiences that are computed server-side by Klaviyo. They are read-only via the API. To influence Segment membership, you update the underlying Contact properties or Tags that Segments are built on.
Klaviyo
Get Klaviyo integrated into your app
Our team understands what it takes to make a Klaviyo integration successful. A short, crisp 30 minute call with folks who understand the problem.
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