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keyword

what is the blood brain barrier

Monthly search volume and cost-per-click data for "what is the blood brain barrier" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=what+is+the+blood+brain+barrier&country=us" +--------------+------------------+ | volume | 3,600 | | cpc | $0.3 | | competition | 0.01 | | country | US | | updated | 2026-03-31 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword volume cpc overlap
bbb brain 18,100 $0.38 20/20
blood brain barrier 18,100 $1.13 20/20
blood-brain barrier 18,100 $1.13 20/20
hematoencephalic barrier 18,100 $4.71 20/20
what is the blood-brain barrier 3,600 $0.78 20/20
blood-brain barrier definition 1,600 $0.11 20/20
blood brain barrier definition 1,300 $0.05 20/20
blood brain barrier meaning 1,300 $0.6 20/20
blood--brain barrier definition 1,300 $0.13 20/20
the blood-brain barrier 480 $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=what+is+the+blood+brain+barrier&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