50,000+
organizations use Klaviyo APIs on a weekly basis
Developers
Extend Klaviyo One’s capabilities even further
Open APIs and a robust developer portal equip teams to build custom integrations that meet your exact business needs.
A flexible, efficient developer experience
Empower your team to unify all your customer data on the platform that prioritizes extensibility, connectivity, and standardization.
The developer portal features:
- Flexible APIs and SDKs
- Detailed technical documentation
- A sample code repository for quick solutions
- A robust developer forum for additional support
Designed for high availability and throughput
7B+
API requests processed per week
300+
tech partners use Klaviyo to support tens of thousands of brands globally
Integrate with your entire tech stack
Build on the platform that brings it all together
Unify customer data
Over 300 integrations are ready to start pulling in data in minutes. Open APIs give developers even more flexibility to connect with custom platforms.
Send data anywhere
Automate actions on other platforms across your tech stack. With webhooks, you can transfer data from Klaviyo One to other systems in real time.
Simplify account management
Manage multiple domestic or international brands through one or more Klaviyo One accounts, and clone work between accounts as needed.
Implement in weeks
"Klaviyo is one of those rare SaaS providers that not only met but exceeded expectations. We were able to implement with Salesforce Commerce Cloud in weeks instead of months. The support we have received both during and after our implementation has set the standard to which all other SaaS providers will be measured."
