keyword

karl marx

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

$ curl "https://api.seodata.dev/v1/keyword?q=karl+marx&country=us" +--------------+------------------+ | volume | 135,000 | | cpc | $0.93 | | competition | 0 | | country | US | | updated | 2026-06-27 | +--------------+------------------+

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
carlos marx	135,000	$0.93	20/20
who is karl marx	3,600	$0.42	20/20
who was karl marx	2,900	$0.26	20/20
karl marx biography	1,300	$2.17	19/20
karl marx bibliography	1,300	$0.89	14/20
whos karl marx	210	$0	14/20
marx karl	170	$0	15/20
what is karl marx	170	$0	14/20
information about karl marx	50	$0	15/20
karl marx who was he	50	$0	14/20

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=karl+marx&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