keyword

cea

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

$ curl "https://api.seodata.dev/v1/keyword?q=cea&country=us" +--------------+------------------+ | volume | 27,100 | | cpc | $2.09 | | competition | 0.02 | | country | US | | updated | 2026-06-30 | +--------------+------------------+

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
carcinoembryonic antigen	27,100	$2.09	16/20
cea lab test	12,100	$3.71	13/20
cea blood test	12,100	$4	12/20
cea tumor marker	5,400	$3.3	14/20
cea test	4,400	$3.86	15/20
carcinoembryonic antigen test	4,400	$2.5	12/20
cea levels	2,900	$5.12	15/20
what is cea	1,300	$1.66	15/20
cea elevation	1,300	$1.33	14/20
cea marker	1,300	$5.11	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=cea&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