Verification API

Step up security, keep engagements flowing

Enhance app security with scalable multi-factor authentication solutions built with conversion in mind – all available through a single API!

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Join over 150,000 businesses, including 8 of the 10 largest tech companies in the world

Don’t choose between security and conversions

When security meets UX

Goodbye fraudsters! Reduce unauthorized payments and account takeovers seamlessly with the most widespread and globally recognized user ID.

100% hassle-free

Make sign-up, log-in, and password resets a breeze with OTPs, password-free phone number verification, and smooth one-factor authentication.

Global reach

Verify users on any device or platform, in multiple languages, and with efficient fallback for optimal conversion, delivery, and price.

Safer, smarter, cheaper: Pick your verification solution(s)!

Flash call verification

The faster, more cost-efficient alternative to traditional SMS verification.
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SMS Verification

Secure login and sign-up, reduce churn and boost revenue with the power of text.
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Data Verification

Instant verification with proven security – everything you need for a smooth UX.
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Phone Call Verification

Global call verification for mobile and landline numbers – Verify any user, anywhere!
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Want more? Our Conversation API takes engagement further!

Engage customers on the world’s most popular messaging channels through a single interface!

SMS, WhatsApp, Facebook Messenger, Viber, and more – our Conversation API got it all.

Conversation API
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The Sinch advantage

Sinch has the largest global tier-1 network with 600+ direct operator connections and an unmatched range of OTT channels, trusted by more than 3,000 enterprise customers worldwide!

We ensure end-to-end security and data protection – we are GDPR compliant, MEF Code of Conduct approved, and ISO27001 certified.

Our platform is robust, secure, fast, and designed to handle high traffic. Enjoy maximum security and quality, low latency, and access to unique telecommunications data. 

Get the exact solution you need with our wide range of SIM-based identity verification methods and our state-of-the-art capability portfolio.

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Get deeper insights into verification solutions

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Fraud and security, Products, Solutions

SIM-based verification: Reducing the risk of cyber attacks

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Image for Why you should blend verification methods for your mobile app or website
Fraud and security, Products, Solutions

Why you should blend verification methods for your mobile app or website

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Image for Sinch Data Verification: The new method revolutionizing UX and security
Fraud and security, Products, Solutions

Sinch Data Verification: The new method revolutionizing UX and security

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What are you waiting for?

Secure your platform and increase conversions now!

Sinch makes it easy!

Build meaningful connections with your customers

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