Click your account name in the top-right of the page and selectMy Profile.
ClickAccess Keysin the Marketplace tab.
ClickCreate a New Access Key. Enter a specific name for the keys (e.g., the name of the developer receiving the keys) and clickOK.
New public and private keys are now associated with your account that you can click to copy. Save this information or keep the page open when working with your Magento project. Use thePublic keyas your username and thePrivate keyas your password.