keyword

free online maths textbooks

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

$ curl "https://app.seodata.dev/v1/keyword?q=free+online+maths+textbooks&country=us" +--------------+------------------+ | volume | 110 | | cpc | $3.94 | | competition | 0.08 | | country | US | | updated | 2026-06-19 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
math books for free	260	$3.12	16/20
online math books free	260	$7.77	16/20
free online mathematics textbooks	110	$3.94	18/20
math textbooks online free	110	$3.94	18/20
online math textbooks free	90	$8.29	18/20
free mathematics textbooks	90	$8.29	17/20
free online math textbooks	90	$8.29	16/20
math textbook online free	90	$8.29	16/20
maths textbooks online free	90	$10.96	16/20
math books online free	20	$0	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://app.seodata.dev/v1/keyword?q=free+online+maths+textbooks&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