keyword

caffeine

Monthly search volume and cost-per-click data for "caffeine" in US.

$ curl "https://api.seodata.dev/v1/keyword?q=caffeine&country=us" +--------------+------------------+ | volume | 135,000 | | cpc | $1.76 | | competition | 0.09 | | country | US | | updated | 2026-06-23 | +--------------+------------------+

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
caffeine is a drug	12,100	$0	19/20
caffeine what is it	8,100	$0.23	20/20
what is caffeine	8,100	$0.65	20/20
caffeine side effects	4,400	$0.37	19/20
is caffeine a stimulant	2,900	$0	19/20
caffeine effects	1,600	$1.32	20/20
caffeine meaning	1,600	$0	20/20
long term effects of caffeine	1,600	$0.36	18/20
effects of caffeine	1,300	$0.22	19/20
caffeine drug	480	$0.31	18/20

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=caffeine&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