> ## Documentation Index
> Fetch the complete documentation index at: https://paxos-0ac97319-jg-test-1.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Connect to the WebSocket Stablecoin Price Feed

> Open a WebSocket connection to the Sandbox USDCUSD feed.

Use the command line to open a WebSocket connection to the Sandbox USDCUSD stablecoin market price feed.

> See the [WebSocket API reference](/api-reference/websockets/overview) for more details.

## ➊ Install WebSocket Client

The quickest way to open a connection is by using [wscat](https://github.com/websockets/wscat), which runs in the terminal.
Using the Python [websocket-client](https://pypi.org/project/websocket-client) package requires a bit of code and the Python shell.

<Tabs>
  <Tab title="SHELL">
    Open the terminal and install [wscat](https://github.com/websockets/wscat) using the `-g` (global) flag.

    ```shell
    npm install -g wscat
    ```

    Ensure [wscat](https://github.com/websockets/wscat) is working. If you see the version number, the module is working:

    ```shell
    wscat --version
    ```
  </Tab>

  <Tab title="PYTHON">
    Open the terminal and install the Python3 [websocket-client](https://pypi.org/project/websocket-client) library.

    ```shell
    pip3 install websocket-client
    ```

    Start the Python3 shell and check that [websocket-client](https://pypi.org/project/websocket-client) was installed correctly.
    If you don't see a `ModuleNotFoundError` message, the library is installed.

    ```py
    python3
    ...
    >>> import websocket
    >>> 
    ```
  </Tab>
</Tabs>

Leave the terminal window open.

## ➋ Connect to Sandbox Feed

Open a long-lived connection to the Sandbox USDCUSD stablecoin market price feed.

<Tabs>
  <Tab title="SHELL">
    ```shell
    wscat --connect wss://ws.sandbox.paxos.com/marketdata/stablecoin/USDCUSD
    ```
  </Tab>

  <Tab title="PYTHON">
    ```py
    >>> import websocket # From the previous step
    >>> def on_message(wsapp, message):
    ...     print(message)
    ...
    >>> wsapp = websocket.WebSocketApp("wss://ws.sandbox.paxos.com/marketdata/stablecoin/USDCUSD", on_message=on_message)
    >>> wsapp.run_forever() # Press CTRL+C to quit
    ```
  </Tab>
</Tabs>

## ➌ Review Sandbox Feed

If everything worked, USDCUSD the pricing data streams to the terminal.

<Tabs>
  <Tab title="SHELL">
    ```json title="Sandbox USDCUSD stablecoin market price feed (wscat)"
    Connected (press CTRL+C to quit)
    {"market":"USDCUSD","price":"0.9996","timestamp":"2024-11-04T16:12:38.053038191Z"}

    {"market":"USDCUSD","price":"0.9996","timestamp":"2024-11-04T16:12:39.080704227Z"}

    {"market":"USDCUSD","price":"0.9996","timestamp":"2024-11-04T16:12:40.044403631Z"}

    ...
    ```
  </Tab>

  <Tab title="PYTHON">
    ```json title="Sandbox USDCUSD stablecoin market price feed (websocket-client)"
    {"market":"USDCUSD","price":"0.9998","timestamp":"2024-11-04T17:23:50.050471826Z"}

    {"market":"USDCUSD","price":"0.9998","timestamp":"2024-11-04T17:23:51.064565343Z"}

    {"market":"USDCUSD","price":"1.0001","timestamp":"2024-11-04T17:23:52.05566422Z"}

    ...
    ```
  </Tab>
</Tabs>