> ## Documentation Index
> Fetch the complete documentation index at: https://docs.trugen.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# List all events

> Reference guide for all supported TruGen JS SDK events.

Here is the complete reference of all events emitted by the TruGen client session:

<ResponseField name="STATE_CHANGED" type="state: TruGenState">
  Fired when the session connection state changes (e.g., to `CONNECTED`, `DISCONNECTED`).
</ResponseField>

<ResponseField name="CONNECTION_ESTABLISHED" type="void">
  Fired when the WebRTC connection is successfully established.
</ResponseField>

<ResponseField name="CONNECTION_CLOSED" type="(code: ConnectionClosedCode, reason: string)">
  Fired when the session connection is terminated.
</ResponseField>

<ResponseField name="VIDEO_STREAM_STARTED" type="track: RemoteVideoTrack">
  Fired when the remote video track from the avatar becomes available.
</ResponseField>

<ResponseField name="AUDIO_STREAM_STARTED" type="track: RemoteAudioTrack">
  Fired when the remote audio track from the avatar becomes available.
</ResponseField>

<ResponseField name="INPUT_AUDIO_STREAM_STARTED" type="stream: MediaStream">
  Fired when the client microphone input stream is initialized.
</ResponseField>

<ResponseField name="AGENT_SPEAKING_STARTED" type="void">
  Fired when the avatar starts speaking.
</ResponseField>

<ResponseField name="AGENT_SPEAKING_ENDED" type="void">
  Fired when the avatar finishes speaking.
</ResponseField>

<ResponseField name="USER_SPEECH_STARTED" type="void">
  Fired when the user starts speaking. Useful for showing an active speaking or listening indicator in the UI.
</ResponseField>

<ResponseField name="USER_SPEECH_ENDED" type="void">
  Fired when the user finishes speaking.
</ResponseField>

<ResponseField name="USER_SPEECH_INTERRUPTED" type="void">
  Fired when the user interrupts the avatar's speech.
</ResponseField>

<ResponseField name="TEXT_CHUNK_RECEIVED" type="payload: { text: string; isFinal: boolean; role: string; }">
  Fired when real-time transcription/captions chunks are received.
</ResponseField>

<ResponseField name="MIC_PERMISSION_PENDING" type="void">
  Fired when the browser is requesting microphone permissions.
</ResponseField>

<ResponseField name="MIC_PERMISSION_GRANTED" type="void">
  Fired when microphone permissions are granted.
</ResponseField>

<ResponseField name="MIC_PERMISSION_DENIED" type="error: string | Error">
  Fired when microphone permissions are denied by the user or browser.
</ResponseField>

<ResponseField name="INPUT_AUDIO_DEVICE_CHANGED" type="deviceId: string">
  Fired when the active input audio capture device is changed.
</ResponseField>

<ResponseField name="ERROR" type="error: any">
  Fired when any WebRTC or connection errors occur.
</ResponseField>