seodata.dev

keyword

1990 series $100 dollar bill rare

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

$ curl "https://api.seodata.dev/v1/keyword?q=1990+series+$100+dollar+bill+rare&country=us" +--------------+------------------+ | volume | 10 | | cpc | $0 | | competition | 0 | | 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 13/20
100 dollar bill 1990 6,600 $0.05 12/20
1990 series 100 dollar bill 1,300 $0.03 16/20
1990 series $100 bill 1,300 $0.03 8/20
us 100 dollar bill 1990 series 1,300 $0.03 8/20
90s 100 dollar bill 70 $0.03 8/20
old 100 dollar bill 1990 50 $0.02 8/20
1990 series $100 dollar bill worth 40 $0 9/20
1990 series 100 dollar bill security features 40 $0 8/20
1990 series $100 dollar bill 10 $0 12/20

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=1990+series+$100+dollar+bill+rare&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