Send Message

Immutable Catalog Entry

This descriptor comes from the active versioned Portal catalog.

WRITEwave.wave_send_message

• Contract tier: agent_ready
• Risk: write
• Catalog version: 2026-07-12.1
• Descriptor hash: 56cd3d40dfd1803cd7e402ff045e8719ecd2d72890fdf2c28cbad75148737805

Send a message to a Wave room as the selected user or bot. In encrypted rooms the SDK encrypts before sending.

Request Body

{
  "jsonrpc": "2.0",
  "id": "wave-wave-send-message-example",
  "method": "tools/call",
  "params": {
    "name": "wave.wave_send_message",
    "arguments": {
      "roomId": "roomId_123",
      "body": "body_example",
      "msgtype": "m.text",
      "format": "format_example",
      "actor": "user",
      "formattedBody": "formattedBody_example"
    }
  }
}

Arguments Schema

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "roomId",
    "body",
    "msgtype",
    "format"
  ],
  "properties": {
    "body": {
      "type": "string",
      "minLength": 1,
      "description": "Plain-text message body."
    },
    "actor": {
      "enum": [
        "user",
        "bot"
      ],
      "type": "string",
      "description": "Wave messaging identity to use: user or bot."
    },
    "format": {
      "type": "string",
      "default": "org.matrix.custom.html",
      "description": "Matrix formatted-body format identifier when formattedBody is provided."
    },
    "roomId": {
      "type": "string",
      "description": "Matrix room ID to send to."
    },
    "msgtype": {
      "enum": [
        "m.text",
        "m.notice",
        "m.emote"
      ],
      "type": "string",
      "default": "m.text",
      "description": "Matrix message type for the outbound event."
    },
    "formattedBody": {
      "type": "string",
      "description": "Optional HTML formatted body."
    }
  },
  "additionalProperties": false
}

Output Schema

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "ok",
    "data",
    "error",
    "meta"
  ],
  "properties": {
    "ok": {
      "type": "boolean",
      "description": "Whether the Wave MCP operation completed successfully."
    },
    "data": {
      "anyOf": [
        {},
        {
          "type": "null"
        }
      ],
      "description": "Tool-specific Wave, Matrix, Synapse, or local navigation result."
    },
    "meta": {
      "type": "object",
      "description": "Safe execution and actor metadata without credential values.",
      "propertyNames": {
        "type": "string"
      },
      "additionalProperties": {}
    },
    "error": {
      "anyOf": [
        {
          "type": "object",
          "required": [
            "code",
            "message"
          ],
          "properties": {
            "code": {
              "type": "string",
              "description": "Stable machine-readable error classification."
            },
            "details": {
              "description": "Optional safe error context without credentials or request bodies."
            },
            "message": {
              "type": "string",
              "description": "Safe actionable error message."
            }
          },
          "additionalProperties": false
        },
        {
          "type": "null"
        }
      ],
      "description": "Safe error details when ok is false."
    }
  },
  "additionalProperties": false
}

Code Examples

cURL

curl -X POST 'https://portal.madpanda3d.com/api/mcp' \
  -H 'Authorization: Bearer mad_live_***' \
  -H 'Content-Type: application/json' \
  -d '{
  "jsonrpc": "2.0",
  "id": "wave-wave-send-message-example",
  "method": "tools/call",
  "params": {
    "name": "wave.wave_send_message",
    "arguments": {
      "roomId": "roomId_123",
      "body": "body_example",
      "msgtype": "m.text",
      "format": "format_example",
      "actor": "user",
      "formattedBody": "formattedBody_example"
    }
  }
}'

Node.js

const response = await fetch('https://portal.madpanda3d.com/api/mcp', {
  method: 'POST',
  headers: {
    Authorization: 'Bearer mad_live_***',
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
  "jsonrpc": "2.0",
  "id": "wave-wave-send-message-example",
  "method": "tools/call",
  "params": {
    "name": "wave.wave_send_message",
    "arguments": {
      "roomId": "roomId_123",
      "body": "body_example",
      "msgtype": "m.text",
      "format": "format_example",
      "actor": "user",
      "formattedBody": "formattedBody_example"
    }
  }
}),
});
const data = await response.json();
console.log(data);

Python

import requests

url = 'https://portal.madpanda3d.com/api/mcp'
headers = {
    'Authorization': 'Bearer mad_live_***',
    'Content-Type': 'application/json',
}
payload = {
  "jsonrpc": "2.0",
  "id": "wave-wave-send-message-example",
  "method": "tools/call",
  "params": {
    "name": "wave.wave_send_message",
    "arguments": {
      "roomId": "roomId_123",
      "body": "body_example",
      "msgtype": "m.text",
      "format": "format_example",
      "actor": "user",
      "formattedBody": "formattedBody_example"
    }
  }
}
response = requests.post(url, headers=headers, json=payload, timeout=60)
print(response.json())

Example Responses

200 Success

{
  "ok": true,
  "message": "Tool wave.wave_send_message executed successfully.",
  "note": "Response shape varies by MCP tool. Inspect live responses for exact fields."
}

502 Upstream Error

{
  "ok": false,
  "classification": "upstream_http_error",
  "message": "Upstream MCP returned a non-success status."
}