signal_pubnub_message

Send lightweight, real-time notifications or presence indicators to a PubNub channel with a 30-character payload. Ideal for instant signals without storing in message history.

Instructions

Sends a PubNub Signal to a specified channel. Signals are lightweight, fast messages that do not get stored in message history and have a 30-character payload limit. Call this tool when you need to send small, real-time notifications or presence indicators.

Input Schema

Name	Required	Description	Default
`channel`	Yes	Name of the PubNub channel (string) to send the signal to
`message`	Yes	Signal payload as a string (max 30 characters)

Input Schema (JSON Schema)

{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "additionalProperties": false,
  "properties": {
    "channel": {
      "description": "Name of the PubNub channel (string) to send the signal to",
      "type": "string"
    },
    "message": {
      "description": "Signal payload as a string (max 30 characters)",
      "type": "string"
    }
  },
  "required": [
    "channel",
    "message"
  ],
  "type": "object"
}

PubNub MCP Server

signal_pubnub_message

Instructions

Input Schema

Input Schema (JSON Schema)

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MCP directory API