AsyncAPI channel · Photon Engine · Photon Realtime Transport Protocol over WebSocket

/photon/ws

Single duplex WebSocket connection used for the entire Photon session against whichever server role (Name Server, Master Server, or Game Server) the client currently addresses. There is no per-message-type URL path in the real protocol; this channel represents the one long-lived socket carrying every operation request, operation response, and event for the connection's lifetime.

Open source AsyncAPI → All Photon Engine channels Photon Engine provider profile
Provider: Photon Engine AsyncAPI: v2.6.0 Spec: Photon Realtime Transport Protocol over WebSocket Operations: 2 Messages: 3

Channel address

/photon/ws

Operations

publish
sendOperationRequest
Client sends an Operation Request (e.g. Connect, JoinLobby, JoinRoom, CreateRoom, RaiseEvent, SetProperties).
receiveOperationResponseOrEvent
Server sends an Operation Response or an Event.

Messages

OperationRequest
Client-to-server request identified by an operation code.
Content-Type: application/octet-stream
OperationResponse
Server-to-client reply to a specific operation code.
Content-Type: application/octet-stream
EventData
Server-pushed event identified by an event code.
Content-Type: application/octet-stream

About AsyncAPI

The AsyncAPI specification describes event-driven APIs the way OpenAPI describes request/response APIs. A channel is the named pipe — a webhook URL, a Kafka topic, a WebSocket route, an MQTT subject — that producers and consumers publish or subscribe to. Each channel carries one or more messages with structured payloads, and an operation declares whether a given party sends or receives on that channel.

Browse every event-driven channel on the APIs.io network or compare with the broader Agent Skill and MCP server surfaces of the same providers.

Work with this as data

Every channel here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for event channels

4 MCP tools reach this
  • find_channelsBrowse and filter every channel in the catalog.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This channel 
curl "https://apis.io/api/v1/channels/photon-ws"
All event channels 
curl "https://apis.io/api/v1/channels?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.