When you use our application program interfaces (APIs), including our SDK Registry/Downloads API, each request to an API must include one of your account's unique API keys.</li> <li>Please carefully guard the security of your account and monitor use of your API keys. You are responsible for all use of the Services under your account, whether or not authorized, including any use of your API keys. At our discretion, we may make limited exceptions to this policy for unauthorized use of your account if you notify us of the problem promptly.</li> <li>