SMS Verification

Keep log in & sign up secure

Secure login & sign up from unwanted visitors by
verifying user possession of number or
adding second-factor authentication.

Quick & easy set up
Get going in minutes! Integrate with our REST API on your backend or SDK on the client. Nice & simple.
Every call & every SMS delivered
We ensure carrier compliance with optimal routing, so you can be sure every SMS is delivered, every time.
Local regulations managed
Sending abroad can be tricky. Different legislation & customs can be hard to navigate. That’s where our local knowledge in over 150 countries comes in.

The Essentials

REST API or SDK

Using our REST API or SDK, which is available for iOS, Android & JavaScript, you’ll be able to quickly integrate online SMS Verification.

Reporting API

Thanks to our real time reporting API, we can optimize routes & make sure your phone number verification conversion rates are sky high.

Custom templates

Not sure what you want (or need!) to say in your phone number verification SMS? No worries, we can give you a hand & set up a customized templates just for you.

Competitive pricing

Thanks to our Tier 1 Super Network with direct connections in 250 operators we can offer market leading online SMS Verification rates.

A professional climber with many climbing tools around his toolbelt

Totally verified votes

Netherlands based Oceanwide Expeditions specialize in expedition-style journeys to Antarctica and the Arctic via their own fleet of ice-strengthened vessels.

Looking for a secure way to run a global competition based on winning votes, Oceanwide Expeditions needed all customer log-ins and votes to be verified. Vote buying or fraudulent vote gathering was strictly off limits.

"The SMS verification solution provided by Sinch was the answer to our problem. The implementation was straightforward, follow-up was quick and accurate - all we needed for a successful partnership."

Franklin Braeckman, Online Marketing Manager, Oceanwide Expeditions

Leisure

SMS Verification Pricing

Sign up & get started today!

Quick sign up, get started in 5 minutes!
Use free test credit
Easy to implement APIs & SDKs

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Get More

Cast an eye over our related products, built to make your engagements even better.

Flash Call Verification The more cost-efficient & faster alternative to traditional SMS OTP delivery.

Voice Verification Deliver OTP codes via voice text-to-speech and make sure numbers can still be verified regardless of accessibility, or fixed line issues.

SMS Messaging Need SMS for something other than verification? Send personal messages to customers around the world.

Deeper Insights

Check out our latest guides, reports and ebooks for a new take on creating engaging communications.

Laptop displaying Sinch's Verification webinar

Facebook Account Kit is closing

If you need to find a new verification solution to secure your communities, look no further! Discover how to secure the login process and verify new users with Sinch today.

Watch the webinar