keyword

fake cash pen

Monthly search volume and cost-per-click data for "fake cash pen" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=fake+cash+pen&country=us" +--------------+------------------+ | volume | 20 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-05-23 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
counterfeit marker	6,600	$0.44	10/20
how do counterfeit pens work	880	$0.59	11/20
how to check if money is real with pen	40	$0	11/20
counterfeit money with pen	20	$0	15/20
counterfeit money marker color	20	$0	11/20
security pen for money	20	$2.01	11/20
when using a counterfeit pen	20	$0	11/20
money verification marker	10	$0.78	13/20
fake note checker pen	10	$0	11/20
how to tell fake money with pen	10	$0	11/20

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=fake+cash+pen&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