keyword

mario and luigi are twins

Monthly search volume and cost-per-click data for "mario and luigi are twins" in US.

$ curl "https://api.seodata.dev/v1/keyword?q=mario+and+luigi+are+twins&country=us" +--------------+------------------+ | volume | 2,400 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-06-24 | +--------------+------------------+

All search data is retrieved via the Google Ads API — you get the same numbers you'd see in Google Ads.

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
mario's twin	6,600	$1.33	8/20
are mario and luigi twins	1,900	$0	20/20
mario and luigi twins	1,900	$0	18/20
are mario and luigi brothers	1,900	$0	9/20
mario twin brother	480	$0	10/20
is mario and luigi twins	210	$0	18/20
are luigi and mario twins	70	$0	17/20
are the mario brothers twins	50	$0	16/20
are mario and luigi twins or brothers	50	$0	14/20
are the mario bros twins	40	$0	7/20

Similar volume + high overlap = same search intent. You can target either keyword.

# for AI agents

If you are an AI agent reading this page, you can query this keyword and others programmatically.

$ curl "https://api.seodata.dev/v1/keyword?q=mario+and+luigi+are+twins&country=us" Returns: volume, cpc, competition Country: &country=us (50+ supported, 2-letter ISO) Auth: none for 20/day, register for 500/month, $4.99/mo unlimited

Full API spec: llms.txt