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OTP verification service

OTP verification services built for real customers

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140m+
95%+
99.9%
3X
70%

What is OTP verification?

Dexatel’s OTP verification service sends a one-time code to a user’s phone via a messaging channel like SMS or WhatsApp. They enter it to prove it’s really them. It’s faster and safer than a password alone.

What will you use OTP for?

Benefits of OTP delivery with Dexatel

As your OTP service provider, Dexatel gets codes to your customers across the channels they use everyday.

See everything you need

Track passcode delivery rates across your channels. Spot problems fast.

Don’t just take our word for it...

5/5
190+
ISO/IEC
GDPR
G2 reviews
5.0 | 45 reviews
What users say on G2
Verified reviews from teams using Dexatel every day. Read what they say about setup, deliverability and support.
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Capterra reviews
4,9 | 29 reviews
What users say on Capterra
Reviews from verified buyers. See how Dexatel holds up against the alternatives they compared.
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The easiest way to get started

Frequently asked questions

Why should I use OTP verification?

Passwords aren’t perfect, and there are some instances where you need to double-check you are interacting with the right person.

OTP gives you a practical way to add stronger authentication. And it’s convenient for your users. No extra app and no need to carry another device.


What happens if an OTP code doesn’t arrive?

That’s up to you. Choose how long to wait and which channel to try next, so one delivery problem does not cause a problem for your customer’s journey. Still a problem? Give us a call.

Do I need a developer to use the Dexatel OTP API?

You will need some technical support to connect the OTP verification API to your website or app. But Dexatel gives you the documentation and guidance to configure and test everything as easily as possible.

How long should an OTP code remain valid?

ong enough for a real person to use it, but not long enough to create unnecessary risk. The right window depends on what you are protecting; the team can help you decide based on your use case.

Ready to go?

Get started now. Try Dexatel’s OTP API. No strings. No fuss. Just see how it works for you. Free 30-day trial. No credit card required.