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Vapi AI

How to start a workflow without any callUrl to daily? I want it in my own frontend

**You can start a workflow directly in your frontend using the Vapi Web SDK by calling `.start({ workflowId: 'YOUR_WORKFLOW_ID' })`, without needing a callUrl to Daily.** This launches the workflow in your web app ([docs](https://docs.vapi.ai/sdk/web), [changelog](https://docs.vapi.ai/changelog/2025/5/6)).

*Quick example:*
```js
import Vapi from '@vapi-ai/web';
const vapi = new Vapi('YOUR_PUBLIC_API_KEY');
vapi.start({ workflowId: 'YOUR_WORKFLOW_ID' });
```

**Could you clarify if you want to trigger the workflow with custom user data or just start the default workflow flow?**

Sources:
- [Vapi Web SDK Documentation](https://docs.vapi.ai/sdk/web)
- [Vapi Workflows Documentation](https://docs.vapi.ai/workflows)
- [Vapi Changelog May 6, 2025](https://docs.vapi.ai/changelog/2025/5/6)

Hey Adrian, as of now, you have to pass workflow ID or as a fourth parameter, or transient workflow as a fifth parameter to VAPI web SDK. Once you initiate the start method, you will get the daily call URL as well.