keyword

1988 $20 dollar bill serial number lookup

Monthly search volume and cost-per-click data for "1988 $20 dollar bill serial number lookup" in US.

$ curl "https://api.seodata.dev/v1/keyword?q=1988+$20+dollar+bill+serial+number+lookup&country=us" +--------------+------------------+ | volume | 260 | | cpc | $2.02 | | competition | 0.08 | | country | US | | updated | 2026-06-14 | +--------------+------------------+

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
dollar serial number lookup	9,900	$1.79	12/20
dollar bill serial number lookup	8,100	$1.59	13/20
1988 20 dollar bill	3,600	$0.05	17/20
1988 a $20 bill	3,600	$0.08	17/20
20 dollar bill 1988	3,600	$0.05	14/20
series 1988 a 20 dollar bill	1,300	$0.42	16/20
20 dollar bill serial number lookup value	720	$1.41	16/20
1988 20 dollar bill serial number lookup	720	$0	14/20
1988 series a $20 dollar bill serial number lookup	90	$0.72	14/20
1988 series a 20 dollar bill serial number lookup	70	$0	14/20

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=1988+$20+dollar+bill+serial+number+lookup&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