keyword

100 dollar 1990

Monthly search volume and cost-per-click data for "100 dollar 1990" in US.

$ curl "https://api.seodata.dev/v1/keyword?q=100+dollar+1990&country=us" +--------------+------------------+ | volume | 8,100 | | cpc | $0.04 | | competition | 0.39 | | country | US | | updated | 2026-06-07 | +--------------+------------------+

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
1990 $100 bill	8,100	$0.04	20/20
hundred dollar bill 1990	8,100	$0.04	14/20
1990 one hundred dollar bill	8,100	$0.04	12/20
100 dollar bill 1990	6,600	$0.05	20/20
series 1981 a 100 dollar bill	2,400	$0.06	12/20
1990 series 100 dollar bill	1,300	$0.03	20/20
1990 series $100 bill	1,300	$0.03	12/20
how much is a 1990 hundred dollar bill worth	210	$0	13/20
1990 dollar bill	70	$0.01	13/20
old 100 dollar bill worth 1990	20	$0.69	13/20

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=100+dollar+1990&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