post
https://a.klaviyo.com/api/template-universal-content
This endpoint is in beta and subject to change.
A beta revision header (2026-07-15.pre) is required to use our beta APIs. Klaviyo APIs in beta are not intended for use in production. See our versioning and deprecation policy for more information.
Create universal content. Supports every block type (including Coupon, Review,
Video, Header, Product, Social, Split, and Table) as well as Section content.
Rate limits:
Burst: 75/s
Steady: 750/m
Scopes:
templates:write