seodata.dev

keyword

best pens

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

$ curl "https://api.seodata.dev/v1/keyword?q=best+pens&country=us" +--------------+------------------+ | volume | 12,100 | | cpc | $0.99 | | competition | 1 | | country | US | | updated | 2026-06-27 | +--------------+------------------+
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
best pen 12,100 $0.99 19/20
best writing pens 9,900 $0.85 17/20
best pens for writing 9,900 $0.96 15/20
nice pens 3,600 $1.64 16/20
writing pens 2,400 $2.03 13/20
good pens 1,600 $1.23 13/20
best ink pen 1,300 $1.01 15/20
favorite pens 880 $0.73 13/20
the best pens 480 $0.93 12/20
best quality pen 390 $2.05 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://api.seodata.dev/v1/keyword?q=best+pens&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