keyword

letters of birmingham jail

Monthly search volume and cost-per-click data for "letters of birmingham jail" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=letters+of+birmingham+jail&country=us" +--------------+------------------+ | volume | 33,100 | | cpc | $1.54 | | competition | 0.01 | | country | US | | updated | 2026-05-25 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
letter from birmingham jail	33,100	$3.54	18/20
letter from the birmingham jail	27,100	$2.18	16/20
letters from birmingham jail	27,100	$2.18	16/20
letter from birmingham prison	27,100	$2.18	15/20
birmingham jail letters	27,100	$2.18	14/20
city of birmingham jail	2,900	$0	15/20
martin luther king letter from birmingham jail	1,900	$2.24	17/20
birmingham jail	1,300	$0	17/20
the letter from birmingham jail	590	$2.25	17/20
the letters from birmingham jail	590	$0.74	15/20

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=letters+of+birmingham+jail&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