organizations use Klaviyo APIs on a weekly basis
Empower your team to unify all your customer data on the platform that prioritizes extensibility, connectivity, and standardization.
The developer portal features:
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.