seodata.dev

keyword

used books sites

Monthly search volume and cost-per-click data for "used books sites" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=used+books+sites&country=us" +--------------+------------------+ | volume | 3,600 | | cpc | $0.99 | | competition | 0.86 | | country | US | | updated | 2026-06-17 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword volume cpc overlap
online books used 74,000 $1.04 20/20
used bookstore online 74,000 $1.09 20/20
used bookstores online 74,000 $1.09 20/20
used books online 74,000 $1.09 18/20
used booksellers 27,100 $1.13 18/20
second-hand books 12,100 $1.08 18/20
second hand book sites 3,600 $1.09 20/20
websites for used books 3,600 $1.09 20/20
used book shops online 2,900 $1.13 20/20
where to buy used books 2,900 $1.13 18/20

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=used+books+sites&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