HomeGuidesAPI Reference
ChangelogHelp CenterCommunityContact Us
Guides
ChangelogHelp CenterCommunityContact Us
These docs are for v1-2. Click to read the latest docs for v2025-01-15.

Migration resources

Audit your Klaviyo API usage

Learn how to audit your API endpoint usage, so you can migrate to Klaviyo’s newest APIs.
API comparison chart

Learn about the differences between the v1/v2 legacy APIs and our new APIs.
Migrate from legacy to new APIs

Learn how to migrate from v1/v2 legacy APIs to Klaviyo's new APIs.
2023-07-15 Relationships migration

Migrate to the standardized Relationships object released in the 2023-07-15 revision.

Updated 2 days ago

Power smarter
digital relationships
By entering your information and clicking “Sign up,” you consent to receive marketing emails (such as newsletters, blog posts, webinars, event invitations and new product updates) from Klaviyo from time to time. You can unsubscribe at any time by clicking on the “Unsubscribe” link at the bottom of our emails. For more information on how we process your personal information and what rights you have in this respect, please see our Privacy Policy.
Terms and Privacy Trademarks Security