keyword

rules of function

Monthly search volume and cost-per-click data for "rules of function" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=rules+of+function&country=us" +--------------+------------------+ | volume | 2,400 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-05-25 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
function rule	2,400	$0	17/20
rules of functions	2,400	$0	14/20
functions and rules	2,400	$0	12/20
rule of a function	2,400	$0	12/20
function rules	2,400	$0	11/20
what are the function rules	590	$0	12/20
what is function rule	590	$0	12/20
function rule math	140	$0	14/20
what is a function rule in math	70	$0	12/20
what is the function rule in math	70	$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://app.seodata.dev/v1/keyword?q=rules+of+function&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