Cookie authentication is the basic authentication method with Blazemeter. Authentication cookies are commonly used by web servers to know whether the user is logged in or not, and which account they are logged in with. When you log in to your Blazemeter account, a cookie will be generated exclusively for your session. When Blazemeter recognizes a valid session key in a subsequent request, it will authorize the user according to this session key without requesting the password again.
To use BlazeMeter API without any dependence in a cookie or a token, be sure to pass your API Key in the request header