keyword

er function

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

$ curl "https://app.seodata.dev/v1/keyword?q=er+function&country=us" +--------------+------------------+ | volume | 18,100 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-06-07 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
endoplasmic reticulum characteristics	135,000	$4.49	19/20
e r function	18,100	$0	20/20
endoplasmic function	18,100	$0	20/20
endoplasmic reticulum function	18,100	$0	20/20
function of endoplasmic reticulum	18,100	$0	20/20
function of the endoplasmic reticulum	18,100	$0	20/20
e.r function	18,100	$0	19/20
endoplasmic reticulum functions	18,100	$0	19/20
functions of endoplasmic reticulum	18,100	$0	18/20
what is the function of the endoplasmic reticulum	3,600	$0	20/20

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=er+function&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