LiveKit Plugins: Phonic

Realtime voice AI integration for Phonic with LiveKit Agents.

Installation

uv add livekit-plugins-phonic

Usage

import asyncio
import logging

from dotenv import load_dotenv

from livekit.agents import (
    Agent,
    AgentServer,
    AgentSession,
    JobContext,
    cli,
    function_tool,
)
from livekit.plugins.phonic.realtime import RealtimeModel

logger = logging.getLogger("phonic-agent")

load_dotenv()


class MyAgent(Agent):
    def __init__(self) -> None:
        super().__init__(
            instructions="You are a helpful voice AI assistant named Sabrina.",
            llm=RealtimeModel(
                voice="sabrina",
                audio_speed=1.2,
            ),
        )

    @function_tool(
        description="Toggle a light on or off. Available lights are A05, A06, A07, and A08."
    )
    async def toggle_light(self, light_id: str, state: str) -> str:
        """Called when the user asks to toggle a light on or off.

        Args:
            light_id: The ID of the light to toggle
            state: Whether to turn the light on or off, e.g., 'on', 'off'
        """
        logger.info(f"Turning {state} light {light_id}")
        await asyncio.sleep(1.0)
        return f"Light {light_id} turned {state}"


server = AgentServer()


@server.rtc_session()
async def entrypoint(ctx: JobContext):
    session = AgentSession()
    await session.start(agent=MyAgent(), room=ctx.room)
    await session.generate_reply(
        instructions="Greet the user, asking about their day.",
    )


if __name__ == "__main__":
    cli.run_app(server)

cd examples
uv run voice_agents/phonic_realtime_agent.py dev

Configuration

Set the PHONIC_API_KEY environment variable, or pass api_key directly to RealtimeModel. All other options are optional.

Option Type Description
api_key str Phonic API key. Falls back to PHONIC_API_KEY environment variable
phonic_agent str Phonic agent name. Options set explicitly here override agent settings
voice str Voice ID — sabrina, grant, virginia, landon, eleanor, shelby, nolan
welcome_message str Message the agent says when the conversation starts. Ignored when generate_welcome_message is True
generate_welcome_message bool Auto-generate the welcome message (ignores welcome_message)
project str Project name (default: main)
default_language str ISO 639-1 default language for recognition and speech
additional_languages list[str] Further ISO 639-1 codes (must not repeat default_language)
multilingual_mode "auto" | "request" Per-utterance language detection vs. change on user request (recommended: request)
audio_speed float Audio playback speed
phonic_tools list[str] Phonic Webhook tool names available to the assistant
boosted_keywords list[str] Keywords to boost in speech recognition
min_words_to_interrupt int Minimum number of user words required to interrupt the assistant
generate_no_input_poke_text bool Auto-generate poke text when user is silent
no_input_poke_sec float Seconds of silence before sending poke message
no_input_poke_text str Poke message text (ignored when generate_no_input_poke_text is True)
no_input_end_conversation_sec float Seconds of silence before ending conversation
forbid_speech_after_tool_call list[str] Tool names after which Phonic should NOT auto-generate a spoken reply. Use for tools that always hand off/trigger an agent switch

If you already have an agent set up on the Phonic platform, you can use the phonic_agent option to specify the agent name. As a note, configuration options you set in the LiveKit Agents SDK will override the agent settings set on the Phonic platform. This means the system prompt you have set on the Phonic platform will be ignored in favor of the instructions field set on the LiveKit Agent. Likewise, options explicitly set in the RealtimeModel constructor will override the Phonic agent's settings.

If you have Webhook tools set up on the Phonic platform, you can use phonic_tools to make them available to your agent. Only Phonic Webhook tools are supported with LiveKit Agents.

Project links

Data verified by PyPI on Jul 25, 2026
Data provided by the project maintainers, verified at the time the release was uploaded to PyPI.

Key dates

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  • Released:
Newer release available (1.6.9)

Owner

PyPI data
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Credits

Author: LiveKit

GitHub Statistics

Data verified by PyPI on Jul 25, 2026
The GitHub source repository was provided by the project maintainers and verified by PyPI at the time of upload. Stars, forks, and open issues/PRs are derived from that repository and have not been independently verified.

License expression

Apache-2.0
View SPDX License List

Requires

Python >=3.10.0

Tags

ai audio livekit phonic realtime video voice

Classifiers

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