Agents SDK (TypeScript)
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@elevenlabs/convai-widget-embed@0.14.7
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@elevenlabs/packages109sendFeedback to clear feedback by passing null. sendFeedback(like, eventId?) now accepts null as the first parameter; when passed it sends score: null to clear the feedback on that event, allowing users to remove their like/dislike rating.44336a2: Allow sendFeedback to target a past message by event_id. sendFeedback(like, eventId?) now accepts an optional event id; when provided it rates that specific message, and when omitted it rates the latest agent turn.
canSendFeedback now reflects whether the conversation is connected rather than whether the latest turn is unrated, so feedback can be sent for any message (including re-rating) while the session is live.
overrides.asr.keywords support to the browser client so per-conversation ASR keyword biasing can be sent via conversation_initiation_client_data.@elevenlabs/client/internal/unity so consumers can avoid importing the browser entrypoint.@elevenlabs/client/internal/unity sub-path export for the Unity SDK's WebGL bridge.
./internal/unity entrypoint exposing MediaDeviceInput, MediaDeviceOutput, attachInputToConnection, attachConnectionToOutput, and setWebRTCAudioAdapterFactory as runtime values, plus WebRTCAudioAdapter, AnalysisResult, MediaDeviceInputConfig, MediaDeviceOutputConfig, and WebRTCConnectionConfig as type-only exports.MediaDeviceInputConfig, MediaDeviceOutputConfig, and WebRTCConnectionConfig (the last replaces the previous ConnectionConfig, which is kept as a deprecated alias).fdad576: Add support for external_agent_joined and agent_typing events.
These events are send when an external agent takes over from the ai agent, and when an agent is currently typing, respectively.
Show an "Agent is typing ..." indicator when the external agent is typing.
inputChunkDurationMs (default 25ms).a9dcb56: Fix iOS Safari dropping the first message's audio on WebSocket voice sessions.
iOS Safari blocks HTMLAudioElement autoplay (including elements fed by MediaStreamDestination) when the underlying AudioContext wasn't started synchronously inside a user gesture, and additionally needs the audio element to have an explicit play() call against a non-empty playback graph. The web setup chain awaits getUserMedia, the connection handshake, and the audio worklet load before MediaDeviceOutput would have created its AudioContext, so by then the gesture is already consumed. The first agent message would arrive into a suspended context and never play; subsequent messages worked because the mic capture had reactivated iOS's audio session by then.
The fix has two parts:
touchstart/touchend/click listeners on document. The first user interaction creates and unlocks an AudioContext (silent BufferSource.start(0) + resume()) and stashes it for the next session. The stash auto-discards after 30s if no session starts. Capture-phase is needed because the convai widget awaits a terms-modal promise between the user's tap and Conversation.startSession, which would otherwise consume the gesture before any session code runs.MediaDeviceOutput on iOS posts ~100ms of silence to the worklet and explicitly calls audioElement.play() to prime the MediaStream → HTMLAudioElement pipeline.Non-iOS is unchanged: it still lazily creates the context with the requested sample-rate constraint and does not register the document listeners.
WebRTC voice sessions are unaffected by this change.
Event/CloseEvent constructors in DisconnectionDetails with a platform-agnostic DisconnectionContext type. The context property on disconnection details is now { type: string; reason?: string; code?: number } instead of a DOM event object. This fixes runtime failures on React Native where Event and CloseEvent constructors are not available.1216ded: Add full tool result payload support to onAgentToolResponse.
The onAgentToolResponse callback now also receives agent_tool_response_full_payload server events, delivering the raw full_tool_result string (capped at 64 KB) alongside the existing summary events. Consumers can distinguish between the two by checking for the presence of full_tool_result on the payload. To receive full payloads, enable the agent_tool_response_full_payload client event in the agent's configuration UI.
<ConversationProvider
agentId="…"
onAgentToolResponse={payload => {
if ("full_tool_result" in payload) {
if (payload.truncated) {
console.warn("full payload truncated to 64 KB");
}
console.log(payload.tool_name, payload.full_tool_result);
RealtimeConnection now exposes mute(), unmute(), and isMuted. The useScribe React hook surfaces these as isMuted state with mute() and unmute() callbacks.onAgentResponseCorrection callback for agent response correction events.contextId to sendContextualUpdate for deduplicating contextual updatesllm to the typed agent prompt override for conversation sessions.keyterms option (string[]) to the Scribe realtime API. Biases the model towards specific terms (max 50 keyterms, each up to 20 chars), passed as repeated query params on the WebSocket URL.noVerbatim option (boolean) to the Scribe realtime API. When enabled, removes filler words, false starts, and disfluencies from transcripts.onConnect runs after the session is marked connected and React has synchronized conversationRef. Also expose and forward onConversationCreated for consumers that need the created Conversation instance before onConnect.0d5c368: Fix getInputVolume/getOutputVolume returning 0 in React Native by adding native volume providers using LiveKit's RMS and multiband FFT processors.
Breaking: getByteFrequencyData() now returns data focused on the human voice range (100-8000 Hz) instead of the full spectrum (0 to sampleRate/2). On web, getVolume() is also computed from this range. The deprecated getAnalyser() method still provides direct access to the raw AnalyserNode for consumers needing full-spectrum data.
50ea6ef: fix: use explicit .js extensions in ESM imports for Node.js compatibility
Switch moduleResolution from bundler to nodenext and add .js extensions to all relative imports. The published packages use "type": "module" but the compiled output had extensionless imports, which breaks Node.js ESM resolution. Also add "type": "module" to @elevenlabs/types.
Updated dependencies [50ea6ef]
sendMultimodalMessage in useConversationControls hook. Export MultimodalMessageInput type from @elevenlabs/client.f174972: Breaking: Input class removed from exports; VoiceConversation.input is now private; changeInputDevice() returns void.
The Input class is no longer exported. The input field on VoiceConversation is now private. changeInputDevice() returns Promise<void> instead of Promise<Input>.
Before:
import { Input } from "@elevenlabs/client";
const input: Input = conversation.input;
input.analyser.getByteFrequencyData(data);
input.setMuted(true);
const newInput: Input = await conversation.changeInputDevice(config);
getInputVolume()/getOutputVolume() and empty Uint8Array from getInputByteFrequencyData()/getOutputByteFrequencyData() instead of throwing when no active conversation or analyser is available. This avoids forcing consumers (e.g., animation loops) to wrap every call in try-catch.1b84231: Add guardrail_triggered server-to-client WebSocket event, emitted when a guardrail is triggered during the conversation.
New callback: onGuardrailTriggered on Callbacks — fires when the server detects a guardrail violation.
const conversation = await Conversation.startSession({
agentId: "your-agent-id",
onGuardrailTriggered: () => {
console.log("A guardrail was triggered");
},
});For the client to receive events, it must be enabled on the "Advanced" tab of the agent's settings.
2e37cd9: Add type discriminant property to TextConversation and VoiceConversation, enabling discriminated union narrowing. Add startSession overloads that narrow return type based on textOnly option.
81013c0: Breaking: Input class removed from exports; VoiceConversation.input is now private; changeInputDevice() returns void.
The Input class is no longer exported. The input field on VoiceConversation is now private. changeInputDevice() returns Promise<void> instead of Promise<Input>.
Before:
import { Input } from "@elevenlabs/client";
const input: Input = conversation.input;
input.analyser.getByteFrequencyData(data);
input.setMuted(true);
const newInput: Input = await conversation.changeInputDevice(config);
textOnly option (passable both on the top-level and via the overrides object): Providing one will propagate to the other, with the top-level taking precedence, in case of conflict.The same callback is available on useConversation, startSession, and the lower-level Conversation.startSession in @elevenlabs/client.
After:
import type { InputController } from "@elevenlabs/client";
conversation.getInputByteFrequencyData(); // replaces input.analyser.getByteFrequencyData
conversation.setMicMuted(true); // replaces input.setMuted
await conversation.changeInputDevice(config); // return value droppedMigration:
import { Input } with import type { InputController } if you need the type.conversation.input.analyser.getByteFrequencyData(data) with conversation.getInputByteFrequencyData().conversation.input.setMuted(v) with conversation.setMicMuted(v).changeInputDevice().f174972: Breaking: InputController and OutputController interfaces are now exported; Input and Output class exports are replaced by these interfaces.
Before:
import { Input, Output } from "@elevenlabs/client";After:
import type { InputController, OutputController } from "@elevenlabs/client";f174972: Breaking: Conversation is no longer a class — it is now a plain namespace object and a type alias for TextConversation | VoiceConversation.
instanceof Conversation no longer compiles. Subclassing Conversation is no longer possible. The startSession() call is unchanged.
Before:
import { Conversation } from "@elevenlabs/client";
// instanceof check compiled fine
if (session instanceof Conversation) { … }
// subclassing was possible
class MyConversation extends Conversation { … }
// startSession returned the class type
const session: Conversation = await Conversation.startSession(options);After:
import { Conversation } from "@elevenlabs/client";
import type {
Conversation,
TextConversation,
VoiceConversation,
} from "@elevenlabs/client";
// startSession call is unchanged
const session: Conversation = await Conversation.startSession(options);
// Narrow using the concrete types or duck-typing instead of instanceof
if ("changeInputDevice" in session) {
// session is VoiceConversation
Migration:
instanceof Conversation checks. Narrow on TextConversation or VoiceConversation using "changeInputDevice" in session (voice) or duck-typing on the methods you need.Conversation — implement the BaseConversation interface directly or compose instead.startSession() call is unchanged and requires no migration.1dc66aa: Breaking: The default connectionType is now inferred from the conversation mode instead of always defaulting to "websocket".
"webrtc" by defaulttextOnly: true) use "websocket" by defaultUsers who previously relied on the implicit "websocket" default for voice conversations and need to keep using WebSocket must now explicitly set connectionType: "websocket".
connectionType is now optional on PublicSessionConfig (when using agentId).
f174972: Breaking: Output class removed from exports; VoiceConversation.output is now private; changeOutputDevice() returns void.
The Output class is no longer exported. The output field on VoiceConversation is now private. changeOutputDevice() returns Promise<void> instead of Promise<Output>.
Before:
import { Output } from "@elevenlabs/client";
const output: Output = conversation.output;
output.gain.gain.value = 0.5;
output.analyser.getByteFrequencyData(data);
output.worklet.port.postMessage({ type: "interrupt" });
const newOutput: Output = await conversation.changeOutputDevice(config);After:
import type { OutputController } from "@elevenlabs/client";
conversation.setVolume({ volume: 0.5 }); // replaces output.gain.gain.value
conversation.getOutputByteFrequencyData(); // replaces output.analyser.getByteFrequencyData
// interruption is handled internally by VoiceConversation
await conversation.changeOutputDevice(config); // return value droppedMigration:
import { Output } with import type { OutputController } if you need the type.conversation.output.gain.gain.value = v with conversation.setVolume({ volume: v }).conversation.output.analyser.getByteFrequencyData(data) with conversation.getOutputByteFrequencyData().changeOutputDevice().f174972: Breaking: VoiceConversation.wakeLock is now private.
The wakeLock field is no longer accessible on VoiceConversation. It was always an internal detail for preventing screen sleep during a session and was never intended as stable public API.
Before:
const lock: WakeLockSentinel | null = conversation.wakeLock;
if (lock) {
await lock.release();
}After: Wake lock lifecycle is managed entirely by VoiceConversation. There is no replacement — the lock is released automatically when the session ends. If you need to suppress wake locking entirely, pass useWakeLock: false in the session options.
const conversation = await Conversation.startSession({
// …
useWakeLock: false, // opt out of wake lock management
});After:
import type { InputController } from "@elevenlabs/client";
conversation.getInputByteFrequencyData(); // replaces input.analyser.getByteFrequencyData
conversation.setMicMuted(true); // replaces input.setMuted
await conversation.changeInputDevice(config); // return value droppedMigration:
import { Input } with import type { InputController } if you need the type.conversation.input.analyser.getByteFrequencyData(data) with conversation.getInputByteFrequencyData().conversation.input.setMuted(v) with conversation.setMicMuted(v).changeInputDevice().81013c0: Breaking: InputController and OutputController interfaces are now exported; Input and Output class exports are replaced by these interfaces.
Before:
import { Input, Output } from "@elevenlabs/client";After:
import type { InputController, OutputController } from "@elevenlabs/client";81013c0: Breaking: Conversation is no longer a class — it is now a plain namespace object and a type alias for TextConversation | VoiceConversation.
instanceof Conversation no longer compiles. Subclassing Conversation is no longer possible. The startSession() call is unchanged.
Before:
import { Conversation } from "@elevenlabs/client";
// instanceof check compiled fine
if (session instanceof Conversation) { … }
// subclassing was possible
class MyConversation extends Conversation { … }
// startSession returned the class type
const session: Conversation = await Conversation.startSession(options);After:
import { Conversation } from "@elevenlabs/client";
import type {
Conversation,
TextConversation,
VoiceConversation,
} from "@elevenlabs/client";
// startSession call is unchanged
const session: Conversation = await Conversation.startSession(options);
// Narrow using the concrete types or duck-typing instead of instanceof
if ("changeInputDevice" in session) {
// session is VoiceConversation
Migration:
instanceof Conversation checks. Narrow on TextConversation or VoiceConversation using "changeInputDevice" in session (voice) or duck-typing on the methods you need.Conversation — implement the BaseConversation interface directly or compose instead.startSession() call is unchanged and requires no migration.81013c0: Breaking: Output class removed from exports; VoiceConversation.output is now private; changeOutputDevice() returns void.
The Output class is no longer exported. The output field on VoiceConversation is now private. changeOutputDevice() returns Promise<void> instead of Promise<Output>.
Before:
import { Output } from "@elevenlabs/client";
const output: Output = conversation.output;
output.gain.gain.value = 0.5;
output.analyser.getByteFrequencyData(data);
output.worklet.port.postMessage({ type: "interrupt" });
const newOutput: Output = await conversation.changeOutputDevice(config);After:
import type { OutputController } from "@elevenlabs/client";
conversation.setVolume({ volume: 0.5 }); // replaces output.gain.gain.value
conversation.getOutputByteFrequencyData(); // replaces output.analyser.getByteFrequencyData
// interruption is handled internally by VoiceConversation
await conversation.changeOutputDevice(config); // return value droppedMigration:
import { Output } with import type { OutputController } if you need the type.conversation.output.gain.gain.value = v with conversation.setVolume({ volume: v }).conversation.output.analyser.getByteFrequencyData(data) with conversation.getOutputByteFrequencyData().changeOutputDevice().81013c0: Breaking: VoiceConversation.wakeLock is now private.
The wakeLock field is no longer accessible on VoiceConversation. It was always an internal detail for preventing screen sleep during a session and was never intended as stable public API.
Before:
const lock: WakeLockSentinel | null = conversation.wakeLock;
if (lock) {
await lock.release();
}After: Wake lock lifecycle is managed entirely by VoiceConversation. There is no replacement — the lock is released automatically when the session ends. If you need to suppress wake locking entirely, pass useWakeLock: false in the session options.
const conversation = await Conversation.startSession({
// …
useWakeLock: false, // opt out of wake lock management
});