keyword

codex

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

$ curl "https://api.seodata.dev/v1/keyword?q=codex&country=us" +--------------+------------------+ | volume | 49,500 | | cpc | $7.51 | | competition | 0.01 | | country | US | | updated | 2026-08-02 | +--------------+------------------+

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
openai codex	9,900	$12.45	10/20
codex definition	5,400	$0	7/20
define codex	5,400	$0	7/20
what is codex	3,600	$0	12/20
what is a codex	3,600	$0	8/20
what is code-x	3,600	$0	8/20
codex openai	2,900	$12.52	11/20
chatgpt codex	2,400	$23.32	11/20
codex website	110	$4.56	12/20
codex program	40	$0	8/20

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=codex&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