To use Cisco Webex integration in n8n, start by adding the HTTP Request node to your workflow canvas and authenticate it using a generic authentication method. Once connected, you can make custom API calls to Cisco Webex to query the data you need using the URLs you provide, for example: after authenticating the HTTP Request node, you can utilize various Cisco Webex API endpoints to perform operations like creating a meeting, retrieving user details, or updating workspace settings. For example, to create a new meeting, set the method to POST and point the URL to the appropriate Cisco Webex API endpoint while including the necessary meeting details in the body. Similarly, to update user information, use the PUT method with the user's ID in the URL and the updated data in the payload.