seodata.dev

keyword

letter

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

$ curl "https://app.seodata.dev/v1/keyword?q=letter&country=us" +--------------+------------------+ | volume | 165,000 | | cpc | $0.52 | | competition | 0.28 | | country | US | | updated | 2026-06-08 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword volume cpc overlap
write a letter 12,100 $2.28 15/20
letters writing 6,600 $1.79 15/20
letter how to write 6,600 $1.79 13/20
writing letter 3,600 $1.82 15/20
letter meaning 1,900 $0 16/20
meaning of letter 1,900 $0 13/20
meaning of letters 1,900 $0 13/20
write a letter example 1,000 $0.34 13/20
writing a letter example 1,000 $0.02 13/20
letters meaning 320 $0.02 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=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