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API Reference

Create Object Type

🚧

This endpoint is in beta and subject to change.

A beta revision header (2026-01-15.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 an object type.

Rate limits:
Burst: 3/s
Steady: 60/m

Scopes:
custom-objects:write

Body Params

Create an object type

data
object
required
Headers
string
required
Defaults to 2026-01-15.pre

API endpoint revision (format: YYYY-MM-DD[.suffix])

Responses

Language
Credentials
Header
Response
Choose an example:
application/vnd.api+json