The Nexmo Verify SDK allows developers to add secure phone verification to applications with a single line of code. It provides user management and global phone verification that scales instantly. The SDK enables passwordless login, two-factor authentication, and transaction verification while reducing development time and enhancing security.

1. www.nexmo.com ©2015 Nexmo, Inc.
The Nexmo Verify SDK allows you to add phone verifica-
tion with a single line of code for password replacement,
passwordless logins, 2-factor authentication, and user/
transaction verification.
Verify SDK provides application developers with user
management as a service allowing them to focus on
building core business logic, and includes libraries, code
samples, documentation, and UIs.
You can scale your app instantly as Verify SDK complies
with changing carrier and country regulations, globally.
Nexmo Verify SDK Enables
• Improved user acquisition
• Seamless user experience
• Reduced development time
• Global scalability
• Enhanced security
Use Cases
• Password replacement
• Secure, non-redundant mobile app registration
• Cross-device login
• Tiered-user verification for KYC
• Two-factor authentication (2FA or MFA)
• Transaction authentication
• Verify phone number for social graph
1or notifications
Nexmo Verify SDK

2. www.nexmo.com ©2015 Nexmo, Inc.
Maximize Verification
Success Rate
As a part of the Verify SDK, Nexmo’s Adaptive RoutingTM
technology allows you to send verification codes over
the lowest latency SMS routes determined in real-
time. In addition, automatic retries and failover to voice
ensure your customer always receives their unique
verification code.
Integrate Easily, Improve
User Experience
All you need to verify users is a single function call with
Verify SDK. A customizable UX framework pre-integrated
with verification workflows ensures that your users have
an intuitive experience whether they need to edit a phone
number or receive a phone call with a verification code.
Manage Users Across
Devices and Enable Single
Sign-On
Easily manage user logins across your mobile and web
apps without developing a user authentication backend.
Verify SDK takes care of user state management and
enables you to automatically login or re-authenticate
users, and allow for single-sign on across all your apps
to provide a seamless user experience. This allows you
to scale your authentication from tens to thousands to
millions of users without any additional development.
Enhanced Security
Complement a phone number with an unique mobile
device ID to prevent SIM-swaps and enhance security.
Set login expiry times based on your security needs to
automatically log out users and enforce authentication.
Send verification codes over push notifications and
require manual user entry, or allow automatic
consumption by your app.
Pay on Successful
Verification, Get Unlimited
Push Verifications on
Subscription
Use a “pay on successful verification” model if your app
only needs to verify phone numbers on user registration
or one-off transactions. Add a subscription model with
“unlimited push verifications per user per month” if you
need to verify users at every login or more than once
per month.
Thank You!