Keyword data (DataForSEO)
Without a data key we suggest keywords from Google Autocomplete and estimate volume and difficulty — the source under each keyword says autocomplete or demo.
Add DATAFORSEO_LOGIN and DATAFORSEO_PASSWORD and research switches to DataForSEO Labs: keyword ideas around each seed with Google search volume, keyword difficulty, CPC, search intent and the last 12 months of volume (sparkline). Refresh volumes re-pulls numbers for every saved keyword. Cost is about $0.01 per request + $0.0001 per keyword and is logged in Billing & usage.
Hindi uses Hindi volumes; other Indian languages use the English volumes for the same country, because DataForSEO's Labs database does not cover them.