keyword

27th amendment

Monthly search volume and cost-per-click data for "27th amendment" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=27th+amendment&country=us" +--------------+------------------+ | volume | 40,500 | | cpc | $0.63 | | competition | 0.01 | | country | US | | updated | 2026-05-27 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
amendment 27	33,100	$0.61	20/20
what is the 27th amendment	2,400	$0.01	20/20
last amendment of the constitution	1,600	$0	20/20
27th amendment simplified	1,600	$0	17/20
when was the 27th amendment ratified	1,300	$0	20/20
when was the last amendment passed	1,300	$0	20/20
amendment xxvii	1,300	$0	16/20
what is 27th amendment	480	$0	16/20
27th amendment of the constitution	390	$0	17/20
27th amendment us constitution	70	$2.72	17/20

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://app.seodata.dev/v1/keyword?q=27th+amendment&country=us" Returns: volume, cpc, competition Country: &country=us (50+ supported, 2-letter ISO) Auth: none for 20/day, register for 1,000/month

Full API spec: llms.txt