Hello @God,
To gain access to the API you must have a funded live account, and you must purchase the API Access add-on. Once you have a live account, you can follow this guide to get started. When the API is available for your user, you will have unlimited access to testing via simulation mode. To access the simulation mode API, use the demo.tradovateapi.com base URL. For live access, use the live.tradovateapi.com base URL.
Hope that helps.