Audio Calling API for Web Applications

PurpleCallio provides a practical API path for adding real-time browser audio to web applications, with hosted UI and SDK choices for different product needs.

Select a stage to understand the workflow.

1. Create and manage the call from trusted backend code.
2. Issue participant-specific access as part of your application flow.
3. Connect participants through hosted UI, React components, or the headless SDK.
4. Use your product UI to manage media controls and call state.

Audio calling follows the same server-controlled call lifecycle as video: your backend creates the call and issues participant access.

Choose hosted UI for a ready-made meeting experience or use the React and headless SDKs to keep control of your product interface.

PurpleCallio supports REST API call management, WebSocket signaling, authentication, TURN relay, camera and microphone controls, device selection, and screen sharing where applicable.

Compare the three integration surfaces, their responsibilities, and a copyable starting point.

import { PurpleCallioClient } from "@purplecallio/sdk";

const client = new PurpleCallioClient({ apiKey: process.env.PURPLECALLIO_API_KEY! });
const call = await client.createCall({ callerId, receiverId });
redirect(call.callerUrl);

• Customer support
• Sales workflows
• Education
• Marketplaces

Keep API keys on your server and issue only participant-specific access to clients. Webhook requests should be verified before your application processes them. Usage is measured in participant-minutes; see pricing for allowances and current rates.