> ## Documentation Index
> Fetch the complete documentation index at: https://docs.kraken.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Hello

> Server-sent hello message on a successful WebSocket connection.

<Note>Connect to: `wss://wss.prime.kraken.com/ws/v1`</Note>

The server sends a `hello` message on a successful connection. After a client connects, the server will send an unsolicited `hello` message.

## Response

<Tabs>
  <Tab title="Response Schema">
    <ParamField path="type" type="string" required>
      Message type. Value: `hello`
    </ParamField>

    <ParamField path="ts" type="string" required>
      An ISO-8601 UTC string of the form `2019-02-13T05:17:32.000000Z`.
    </ParamField>

    <ParamField path="session_id" type="string" required>
      A session ID that uniquely identifies this websocket session.
    </ParamField>
  </Tab>

  <Tab title="Example">
    ```json theme={null}
    {
      "type": "hello",
      "ts": "2019-02-13T05:17:32.000000Z",
      "session_id": "1SJGEGSYMZ800"
    }
    ```
  </Tab>
</Tabs>