## HandshakeTry it

### WSS

`wss://api.hume.ai/v0/evi/chat/:chat_id/connect`

### Path parameters

- **chat_id**: string (Required)  
  The ID of the chat to connect to.

### Query parameters

- **access_token**: string (Optional)  
  Defaults to ``  
  Access token used for authenticating the client. If not provided, an `api_key` must be provided to authenticate.

The access token is generated using both an API key and a Secret key, which provides an additional layer of security compared to using just an API key.

For more details, refer to the [Authentication Strategies Guide](https://dev.hume.ai/docs/introduction/api-key#authentication-strategies).

### Send

- **ControlPlanePublishEvent**: object (Required)

### Receive

- **SubscribeEvent**: object (Required)