How to get ChatGPT key?

Could you please elaborate on the process of obtaining a ChatGPT key? I understand that ChatGPT is an advanced language model with numerous potential applications, but I'm unsure of the specific steps required to secure a key. Could you guide me through the process, including any prerequisites or requirements that need to be met? Additionally, are there any limitations or restrictions associated with the use of a ChatGPT key? I'm particularly interested in understanding how I can leverage this technology to enhance my professional or personal endeavors. Thank you for your assistance.