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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.

Update an application you own.

Use this to update application details, such as the application's marketplace listing. Also use this to submit an application for review, withdraw it from review, or unpublish it.

OAuth apps can update only themselves, without applications:write; one OAuth app cannot manage another.

Rate limits:
Burst: 10/s
Steady: 150/m

Optional Scopes:
applications:write

OpenAPI Spec