Deliver smarter customer experiences—build with Klaviyo
Your partnership journey
Explore what’s possible with Klaviyo
Learn how Klaviyo helps developers and product builders create impactful apps—and what you can unlock as a technology partner.
- Tap into 183K+ high-intent ecommerce brands and 6K+ agency partners.
- Get discovered through our SEO-powered App Marketplace and in-product placements.
- Create a stickier product by deeply connecting into a core part of the customer’s tech stack.
Ready to build? Start here
To become a partner and get listed in our App Marketplace – create and submit your app for review. Once approved, you’re in!
- App creators have access to self-service tools such as API documentation, developer guides, and a dedicated portal to streamline every step of the build process.
- Join office hours, tap into our developer community, and get support through verification.
- Once listed, monitor performance and adoption to refine your integration and grow usage.
Make your listing stand out
Once your app is live, you’ll unlock new ways to increase adoption, reach, and grow your impact.
- Partner Portal: Track installs, manage leads, and access resources
- Partner Demand Center: Access GTM assets, templates, and enablement resources to scale your apps’ visibility and adoption within Klaviyo’s ecosystem
- Tiered benefits: Scale adoption to unlock co-marketing and other flywheels to increase app visibility and adoption.
Why create an app with Klaviyo?
Discover how brands like Grid & Pixel have grown with a Klaviyo technology partnership.
183,000+ brands trust Klaviyo to grow— with a 228% average ROI*
“We saw real results – higher retention, more qualified leads, and stronger conversations with bigger brands. That kind of ecosystem support is rare, and it’s exciting to see Klaviyo formalizing it into a program that more partners can benefit from.”
Mike Rossi, CEO of Smile.io
One ecosystem. Thousands of growth stories.
Wherever you are in your journey, we’re here to help.
Have questions about the program or development process? Get in touch.
Already built your app? Tell us about it to start your submission.
*Based on The Total Economic Impact™ of Klaviyo, a commissioned study conducted by Forrester Consulting on behalf of Klaviyo. Results are for a composite organization and may not reflect the results achieved by all customers.