Suggestion: The error means your API key does not have permission to access the assistant. To fix this, try generating a new public API key in your Vapi dashboard and ensure it is linked to the correct assistant: 1. Go to Vapi Dashboard → API Keys. 2. Create a new public key and use it in your integration. 3. Make sure the assistantId matches the one authorized for your key. If the issue persists, double-check that your assistant and key are in the same organization and environment. Source: - [Vapi API Key Permissions](https://docs.vapi.ai/chat/web-widget#copy-your-public-api-key)