seodata.dev

keyword

human participants

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

$ curl "https://api.seodata.dev/v1/keyword?q=human+participants&country=us" +--------------+------------------+ | volume | 1,600 | | cpc | $3.63 | | competition | 0.01 | | country | US | | updated | 2026-06-12 | +--------------+------------------+
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
human participants in research 1,300 $0 20/20
human subjects research 1,300 $0 11/20
human subject research 1,300 $4.04 8/20
human subjects in research 1,300 $4.04 7/20
research with humans 260 $0 7/20
human participants research ethics 50 $0 7/20
human participant research 30 $0 14/20
human participation in research 30 $0 14/20
human participants research 30 $0 13/20
human research participants 30 $0 11/20

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=human+participants&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