keyword

free online history books

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

$ curl "https://api.seodata.dev/v1/keyword?q=free+online+history+books&country=us" +--------------+------------------+ | volume | 90 | | cpc | $5.67 | | competition | 0.34 | | country | US | | updated | 2026-06-24 | +--------------+------------------+

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
free books on history	110	$1.4	11/20
history books for free	110	$3.16	11/20
historical books online free	90	$1.51	12/20
history books online for free	90	$1.51	12/20
online free history books	90	$1.51	11/20
online history books free	90	$1.51	11/20
read history books online free	20	$4.11	13/20
read free history books online	20	$4.11	12/20
reading history books online free	20	$4.11	11/20
online history books to read for free	10	$0	12/20

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+online+history+books&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