Comparison

VerifNow vs castomAPI

Both promise one account for many validations. castomAPI is a broad catalogue of 700+ endpoints paid with tokens; VerifNow is built around the fields billing and onboarding forms depend on, on one monthly quota.

	VerifNow	castomAPI
What it validates	VAT (against VIES), IBAN, national IDs, email and phone — seven validators on one key	700+ endpoints on one account, including a verify set covering VAT, IBAN, email and phone
How it's billed	One monthly quota shared by every validator; annual billing saves 20%	Token wallet; only successful calls are debited (“Pay for what worked”)
Free tier	250 validations / month, all seven validators, no credit card	1,000 tokens a month
Requests that fail on our side	Not counted: a 5xx or no answer gives the request back to your quota	Not debited (“Pay for what worked”)
Entry paid plan	US$19 / month for 10,000 validations	Check their pricing page
Cost per 1,000 checks on that plan	US$1.9 per 1,000, any validator	Depends on tokens per call — check their pricing page
When VIES is down	Answers from the last confirmed result; with none, reports the number as unverified, not invalid	Check their documentation
VAT audit trail	Consultation numbers kept 30 days to 10 years depending on plan; searchable, CSV export	Check their documentation
Uptime commitment	No contractual SLA yet — contact us if you need one	Check their documentation

What it validates: VerifNowVAT (against VIES), IBAN, national IDs, email and phone — seven validators on one keycastomAPI700+ endpoints on one account, including a verify set covering VAT, IBAN, email and phone
How it's billed: VerifNowOne monthly quota shared by every validator; annual billing saves 20%castomAPIToken wallet; only successful calls are debited (“Pay for what worked”)
Free tier: VerifNow250 validations / month, all seven validators, no credit cardcastomAPI1,000 tokens a month
Requests that fail on our side: VerifNowNot counted: a 5xx or no answer gives the request back to your quotacastomAPINot debited (“Pay for what worked”)
Entry paid plan: VerifNowUS$19 / month for 10,000 validationscastomAPICheck their pricing page
Cost per 1,000 checks on that plan: VerifNowUS$1.9 per 1,000, any validatorcastomAPIDepends on tokens per call — check their pricing page
When VIES is down: VerifNowAnswers from the last confirmed result; with none, reports the number as unverified, not invalidcastomAPICheck their documentation
VAT audit trail: VerifNowConsultation numbers kept 30 days to 10 years depending on plan; searchable, CSV exportcastomAPICheck their documentation
Uptime commitment: VerifNowNo contractual SLA yet — contact us if you need onecastomAPICheck their documentation

Figures for castomAPI come from its public pages and may have changed since; check its site before deciding. Where a cell points to their documentation, we have not confirmed how they handle it.

Where VerifNow differs

A request that fails on our side, a 5xx or no answer at all, does not count against your quota.
Built around billing and onboarding forms: VAT against VIES, IBAN, national IDs, email and phone, each at full depth on every plan.
A fixed monthly price and quota, so you know the bill before the month starts.
VAT numbers are answered from the last confirmed result when VIES is down.
VIES consultation numbers are kept as audit evidence, up to 10 years on Pro.

When castomAPI may suit you better

You prefer prepaid tokens to a monthly plan.
You need endpoints far beyond form-field validation from one account.

Try it on your own data

250 validations a month free, all seven validators, no credit card.

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