v1
latestOpenAPI 3.0.42026-08-068161,1253.1 MBUniverses
Publish a cross-server message to a universe
Publish a message to a pre-defined topic of an experience, with the size of the message up to 1,024 characters (1 KB). Requires the Publish permission for API keys and the universe-messaging-service:publish scope for OAuth 2.0 apps. See Cross-server messaging for defining and subscribing users to a topic.
post/messaging-service/v1/universes/{universeId}/topics/{topic}
Path parameters
universeIdinteger required
The identifier of the experience in which you want to send your messages to. You can copy your experience's Universe ID on Creator Dashboard.
topicstring nullable required
The topic that you want to publish your message to, with up to 80 characters.
Request body
Response
Returns an empty response body.