keyword

isbn: 9780135855836

Monthly search volume and cost-per-click data for "isbn: 9780135855836" in US.

$ curl "https://api.seodata.dev/v1/keyword?q=isbn:+9780135855836&country=us" +--------------+------------------+ | volume | 30 | | cpc | $0.64 | | competition | 0.73 | | country | US | | updated | 2026-06-23 | +--------------+------------------+

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
campbell biology	4,400	$1.09	3/20
campbell biology 12th edition	2,900	$1.39	4/20
mastering modified biology	90	$0.76	4/20
modified mastering biology pearson	90	$0.78	4/20
mastering biology modified	90	$0.76	3/20
modified mastering biology with pearson	90	$0.78	3/20
modified mastering biology with pearson etext	70	$1.56	3/20
pearson campbell biology 12th edition	50	$0.61	3/20
modified mastering biology 12th edition	40	$0	3/20
isbn 9780135855836	30	$0.64	17/20

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=isbn:+9780135855836&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