keyword

freetextbooks

Monthly search volume and cost-per-click data for "freetextbooks" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=freetextbooks&country=us" +--------------+------------------+ | volume | 12,100 | | cpc | $4.3 | | competition | 0.13 | | country | US | | updated | 2026-05-27 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
online textbook free	14,800	$5.08	14/20
free textbooks	9,900	$9.57	18/20
textbooks free	9,900	$9.57	18/20
free textbooks pdf	5,400	$11.64	17/20
textbooks online free	4,400	$9.62	16/20
free online textbooks	4,400	$9.62	15/20
free textbooks online	4,400	$9.14	15/20
textbooks pdf	2,400	$6.49	15/20
where to find free textbooks	2,400	$10.95	15/20
free textbooks online pdf	1,600	$4.37	15/20

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=freetextbooks&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