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The Vapi Client SDKs automatically configure audio streaming to and from the client, and provide a simple interface for starting calls. The interface is equivalent across all the SDKs. The SDKs are open source, and available on GitHub:

Vapi Web

Add a Vapi assistant to your web application.

Vapi iOS

Add a Vapi assistant to your iOS app.

Vapi Flutter

Add a Vapi assistant to your Flutter app.

Vapi React Native

Add a Vapi assistant to your React Native app.

Vapi Python

Multi-platform. Mac, Windows, and Linux.

Events

  • speech-start, speech-end, and volume-level for creating animations. - message for receiving messages sent to the Server URL locally on the client, so you can show live transcriptions and use function calls to perform actions on the client.