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

# useStytchB2BClient Hook

> Get the Stytch B2B client instance using the Stytch React SDK

`useStytchB2BClient` is a hook that returns the Stytch client that was passed into `<StytchB2BProvider>`. Use the client to call any SDK methods. To follow React best practices, these methods should only be called in callbacks or `useEffect` hooks.

<Panel>
  <RequestExample>
    ```jsx React theme={null}
    import { useStytchB2BClient } from '@stytch/react/b2b';

    export const MyComponent = () => {
      const stytch = useStytchB2BClient();

      const handleAction = async () => {
        // Use the client to call SDK methods
        await stytch.session.authenticate({
          session_duration_minutes: 60,
        });
      };

      return <button onClick={handleAction}>Authenticate</button>;
    };
    ```
  </RequestExample>
</Panel>