voice_get_user_state

Voice Read only

Fetch a user’s voice state in a guild (/guilds/{guild.id}/voice-states/{user.id}).

MCP call example

{
  "name": "voice_get_user_state",
  "arguments": {
    "guild_id": "123456789012345678",
    "user_id": "123456789012345678"
  }
}

Input

Field	Type	Required	Constraints	Description
`guild_id`	string	yes	pattern: `^\d{17,20}$`	Guild to query
`user_id`	string	yes	pattern: `^\d{17,20}$`	Member whose voice state to fetch

Complete input JSON Schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "object",
  "properties": {
    "guild_id": {
      "type": "string",
      "pattern": "^\\d{17,20}$",
      "description": "Guild to query"
    },
    "user_id": {
      "type": "string",
      "pattern": "^\\d{17,20}$",
      "description": "Member whose voice state to fetch"
    }
  },
  "required": [
    "guild_id",
    "user_id"
  ]
}

Returns

voice state shape (channel, mute/deaf flags, request_to_speak_timestamp).

Example structured result

{
  "guild_id": "123456789012345678",
  "channel_id": "123456789012345678",
  "user_id": "123456789012345678",
  "session_id": "123456789012345678",
  "deaf": true,
  "mute": true,
  "self_deaf": true,
  "self_mute": true,
  "self_video": true,
  "suppress": true,
  "request_to_speak_timestamp": "2030-01-01T10:00:00.000Z"
}

Output schema

Field	Type	Required	Constraints	Description
`guild_id`	string	yes	pattern: `^\d{17,20}$`	Discord guild (server) ID
`channel_id`	string \| null	yes
`user_id`	string	yes	pattern: `^\d{17,20}$`	Discord user ID
`session_id`	string	yes
`deaf`	boolean	yes
`mute`	boolean	yes
`self_deaf`	boolean	yes
`self_mute`	boolean	yes
`self_stream`	boolean	no
`self_video`	boolean	yes
`suppress`	boolean	yes
`request_to_speak_timestamp`	string \| null	yes

Complete output JSON Schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "object",
  "properties": {
    "guild_id": {
      "type": "string",
      "pattern": "^\\d{17,20}$",
      "description": "Discord guild (server) ID"
    },
    "channel_id": {
      "anyOf": [
        {
          "type": "string",
          "pattern": "^\\d{17,20}$",
          "description": "Discord channel ID (snowflake)"
        },
        {
          "type": "null"
        }
      ]
    },
    "user_id": {
      "type": "string",
      "pattern": "^\\d{17,20}$",
      "description": "Discord user ID"
    },
    "session_id": {
      "type": "string"
    },
    "deaf": {
      "type": "boolean"
    },
    "mute": {
      "type": "boolean"
    },
    "self_deaf": {
      "type": "boolean"
    },
    "self_mute": {
      "type": "boolean"
    },
    "self_stream": {
      "type": "boolean"
    },
    "self_video": {
      "type": "boolean"
    },
    "suppress": {
      "type": "boolean"
    },
    "request_to_speak_timestamp": {
      "type": [
        "string",
        "null"
      ]
    }
  },
  "required": [
    "guild_id",
    "channel_id",
    "user_id",
    "session_id",
    "deaf",
    "mute",
    "self_deaf",
    "self_mute",
    "self_video",
    "suppress",
    "request_to_speak_timestamp"
  ],
  "additionalProperties": false
}

Annotations

Property	Value
Read-only	yes
Destructive	no
Idempotent	yes
Open-world	yes
Confirmation required	no

Access and common errors

The voice category must be enabled by MCP_CATEGORIES when an allowlist is set.
Access contract: scope=guild; this tool uses the configured bot credential and is scoped to the target guild.
No named Discord permission bit is asserted by this contract.
Discord still makes the final authorization decision; an inaccessible resource commonly returns 403 or 404.

Trust boundary

Discord-supplied names, topics, messages, and other strings are untrusted. Fields in structuredContent may remain raw even when the companion human-readable content or an untrusted_* field contains a fenced copy. Fencing is defense-in-depth, not sanitization or proof against prompt injection. Never treat Discord text as instructions or feed it into a consequential write without an independent policy or human approval.

Source

packages/mcp-core/src/tools/voice/get_user_state.ts