keyword

free books database

Monthly search volume and cost-per-click data for "free books database" in US.

$ curl "https://api.seodata.dev/v1/keyword?q=free+books+database&country=us" +--------------+------------------+ | volume | 140 | | cpc | $4.42 | | competition | 0.03 | | country | US | | updated | 2026-06-06 | +--------------+------------------+

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
online libraries	14,800	$5.6	14/20
online library free	9,900	$5.14	18/20
free online library	8,100	$6.17	17/20
free library online	2,400	$7.55	18/20
books library	1,900	$3.05	18/20
e library books free	1,900	$3.58	15/20
online library books	1,900	$4.62	15/20
online books library	880	$4.01	17/20
library book online	390	$2.58	15/20
free book database	140	$11.14	16/20

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=free+books+database&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