Authentication

Some methods require authentication to identify the caller. You will need an API key for authentication (get it at your api page).
API key is passed as auth parameter in URL query, e.g. http://www.esponce.com/api/v3/track/list?auth=9b02ec5da819ff14450c56583211eff3
Warning: try not to use API key in public as malicious users can copy your API key and abuse it (e.g. unwanted delete or content change)