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

# OpenAI Realtime WebRTC Transport

> WebRTC implementation for Android using OpenAI

The OpenAI Realtime WebRTC transport implementation enables real-time audio communication with the OpenAI Realtime service, using a direct WebRTC connection.

## Installation

Add the transport dependency to your `build.gradle`:

```gradle theme={null}
implementation "ai.pipecat:openai-realtime-webrtc-transport:0.3.7"
```

## Usage

Create a client:

```kotlin theme={null}
val transport = OpenAIRealtimeWebRTCTransport.Factory(context)

val options = RTVIClientOptions(
    params = RTVIClientParams(
        baseUrl = null,
        config = OpenAIRealtimeWebRTCTransport.buildConfig(
            apiKey = apiKey,
            initialMessages = listOf(
                LLMContextMessage(role = "user", content = "How tall is the Eiffel Tower?")
            ),
            initialConfig = OpenAIRealtimeSessionConfig(
                voice = "ballad",
                turnDetection = Value.Object("type" to Value.Str("semantic_vad")),
                inputAudioNoiseReduction = Value.Object("type" to Value.Str("near_field")),
                inputAudioTranscription = Value.Object("model" to Value.Str("gpt-4o-transcribe"))
            )
        )
    )
)

val client = RTVIClient(transport, callbacks, options)

client.start().withCallback {
    // ...
}
```

## Resources

<CardGroup cols={2}>
  <Card horizontal title="Demo" icon="play" href="https://github.com/pipecat-ai/pipecat-client-android-openai-realtime-webrtc-demo">
    Simple Chatbot Demo
  </Card>

  <Card horizontal title="Source" icon="github" href="https://github.com/pipecat-ai/pipecat-client-android-transports/">
    Client Transports
  </Card>
</CardGroup>

<Card title="Pipecat Android Client Reference" icon="book-open" href="https://docs-android.rtvi.ai/">
  Complete API documentation for the Pipecat Android client.
</Card>