keyword

what is reason 51 for payment declined

Monthly search volume and cost-per-click data for "what is reason 51 for payment declined" in US.

$ curl "https://api.seodata.dev/v1/keyword?q=what+is+reason+51+for+payment+declined&country=us" +--------------+------------------+ | volume | 30 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-08-31 | +--------------+------------------+

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
mastercard declined codes	170	$0	10/20
credit card declined code 51	110	$0	12/20
debit card decline codes	50	$0	10/20
visa credit card declined codes	40	$0	9/20
mastercard debit card declined codes	30	$0	13/20
51 : declined	30	$0	9/20
51 declined	30	$0	9/20
card eft processor decline	30	$0	9/20
debit card declined codes	20	$0	12/20
debit not approved code 51	20	$0	12/20

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=what+is+reason+51+for+payment+declined&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