​
Features

  • Real-time voice conversations with AI
  • Support for both Outspeed and OpenAI providers
  • WebRTC-based audio streaming
  • Customizable voice and model selection
  • ElevenLabs Conversational AI compatibility
The Outspeed Swift SDK is fully compatible with the ElevenLabs Swift SDK. See our ElevenLabs Compatibility guide for migration details.

​
Installation

  1. Open Your Project in Xcode
  2. Go to File > Add Packages...
  3. Enter Repository URL: https://github.com/outspeed-ai/OutspeedSwift
  4. Import the SDK 
    import OutspeedSDK
Ensure NSMicrophoneUsageDescription is added to your Info.plist to explain microphone access.

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Requirements

  • iOS 15.2 or later
  • Swift 6.1+

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Basic Usage

Here’s the minimal code to get a voice conversation working: 
import OutspeedSDK

// Create a session configuration
let config = OutspeedSDK.SessionConfig()

// Create callbacks to handle events
let callbacks = OutspeedSDK.Callbacks()
callbacks.onMessage = { message, role in
    print("Received message from \(role.rawValue): \(message)")
}

callbacks.onError = { message, error in
    print("Error: \(message)")
}

callbacks.onStatusChange = { status in
    print("Status changed to: \(status.rawValue)")
}

// Start the conversation
Task {
    do {
        let conversation = try await OutspeedSDK.Conversation.startSession(
            config: config,
            callbacks: callbacks,
            apiKey: "<YOUR_OUTSPEED_API_KEY>"
        )

        // When done with the conversation
        conversation.endSession()
    } catch {
        print("Failed to start conversation: \(error)")
    }
}

​
Customization

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System Prompt and First Message

let agentConfig = OutspeedSDK.AgentConfig(
    prompt: "You are a helpful assistant with a witty personality.",
    firstMessage: "Hey there, how can I help you with Outspeed today?"
)

let config = OutspeedSDK.SessionConfig(
    overrides: OutspeedSDK.ConversationConfigOverride(agent: agentConfig)
)

​
Voice Selection

let ttsConfig = OutspeedSDK.TTSConfig(voiceId: OutspeedSDK.Voice.david.rawValue)

let config = OutspeedSDK.SessionConfig(
    overrides: OutspeedSDK.ConversationConfigOverride(tts: ttsConfig)
)

​
Complete Example

See a full iOS voice bot application example at our Examples Repository.