Domain Analysis Reports uses v4. You can also get results with Serpstat Batch Analysis for Google Spreadsheets.
Serpstat Batch Analysis for Google Spreadsheets: How to use it.
v4 — works through the POST requests:
- works through POST-requests by HTTP;
- point of entry: https://api.serpstat.com/v4/
- token parameter is required for any method (API key identifying the user, which can be found in user's Serpstat account profile);
- response is received in JSON format;
- uses API limits according to number of lines in response.