The Partner API is protected via OAuth 2.0 / OIDC. Therefore every request needs to be authenticated via an access token.
See also the Authentication Guide for more information.
Try Out Feature Disabled
The 'Try Out' feature is disabled for this endpoint, as
client_id
andclient_secret
should never be directly entered on a website. The short-livedaccess_token
can be used for all other endpoints directly in the browser.