keyword

open letter

Monthly search volume and cost-per-click data for "open letter" in US.

$ curl "https://api.seodata.dev/v1/keyword?q=open+letter&country=us" +--------------+------------------+ | volume | 2,900 | | cpc | $2.44 | | competition | 0.02 | | country | US | | updated | 2026-06-22 | +--------------+------------------+

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
open letter when	2,900	$0.25	12/20
open the letter	2,900	$2.44	11/20
what is an open letter	720	$0	9/20
what is open letter	720	$0	8/20
an open letter	140	$0	13/20
open letter newspaper	70	$0	8/20
open letter to	30	$0	9/20
this is an open letter	30	$0	9/20
open letter writing	30	$0	8/20
the open letter	20	$0	9/20

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=open+letter&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