keyword

payment system

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

$ curl "https://app.seodata.dev/v1/search-volume?q=payment-system" +--------------+------------------+ | volume | 3,600 | | cpc | $40.54 | | competition | 0.62 | | country | US | | updated | 2026-03-30 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
payment	368,000	$3.63	16/20
online payments	301,000	$14	11/20
online payment	165,000	$17.44	12/20
online payment services	14,800	$30.87	11/20
online payment systems	5,400	$32.84	11/20
payment online	3,600	$12.77	11/20
payment systems	2,900	$27.28	17/20
payment services	2,900	$31.67	16/20
payments online	2,900	$9.38	14/20
payments systems	2,900	$34.44	14/20

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/search-volume?q=payment-system" 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