Messaging Service (messaging-service/v1)

This page contains reference documentation for the Open Cloud v1 Messaging Service API, which can broadcast messages across all servers in your experience.

The v2 API has its own version of the Publish Message method. For information on using the v2 method, see the Messaging usage guide.

Download the original OpenAPI definition

Operations

Method	Endpoint	Summary
POST	/v1/universes/{universeId}/topics/{topic}	Publish a cross-server message to a universe

Schemas

PublishRequest

Other Components

API Metadata

{
  "openapi": "3.0.1",
  "info": {
    "title": "Messaging Service",
    "description": "This page contains reference documentation for the Open Cloud v1 Messaging Service API, which can broadcast messages across all servers in your experience.\n\nThe v2 API has its own version of the [Publish Message](/cloud/reference/Universe#Cloud_PublishUniverseMessage) method. For information on using the v2 method, see the [Messaging usage guide](/cloud/guides/usage-messaging.md).",
    "version": "v1",
    "x-roblox-extensions-version": "1.0.0"
  },
  "servers": [
    {
      "url": "https://apis.roblox.com/messaging-service/"
    }
  ]
}