seodata.dev

keyword

1981 series $100 dollar bill watermark

Monthly search volume and cost-per-click data for "1981 series $100 dollar bill watermark" in US.

$ curl "https://api.seodata.dev/v1/keyword?q=1981+series+$100+dollar+bill+watermark&country=us" +--------------+------------------+ | volume | 40 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-06-16 | +--------------+------------------+
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
fake old 100 dollar bill 1,000 $0 10/20
1981 series $100 dollar bill real or fake 40 $0 9/20
1990 series 100 dollar bill security features 40 $0 7/20
1981 series 100 dollar bill security features 30 $0 12/20
does a 1981 hundred dollar bill have a security strip 30 $0 12/20
1981 series 100 dollar bill have a security strip 30 $0 11/20
1981 series 100 dollar bill watermark 30 $0 9/20
how to tell if 100 dollar bill is real old 30 $0 7/20
how to tell old 100 dollar bill is real 30 $0 7/20
1981 hundred dollar bill fake 20 $0 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=1981+series+$100+dollar+bill+watermark&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