Create an additional level of security by offering temporary, one-time passwords (OTP) for number validations, two-factor authentication, and verified purchases.

Make it harder for unauthorized parties to gain access to secure passwords or purchasing information.
OTPs are only valid for a short amount of time, preventing extra usage or vulnerabilities.
Make offers to specific customers with single-use passwords only they activate.
OTPs are great for offering two-factor authentication when signing in to new devices.
Using our phone verification services, you can protect payments, deposits, and log-ins with customer-specific one-time passwords.
With our phone verification services, you can send a personalized OTP message to your end-user by calling the dedicated endpoint.
The user enters the unique code within your application or website.
Verify the code submitted by the end-user through a request to the verification endpoint.
See how six companies are increasing CSAT and security using 8x8 SMS APIs.
“The 8x8 API was easily integrated into our platform, and we leveraged on the automated messages to help build the credibility and trust of our brand. It is a valuable investment into the future.”
Louie Alcantara, Co-Founder of Mangan.ph
2FA increases security for websites and applications, making it harder to hack into user accounts.

We understand how important it is to quickly deliver OTPs. Our OTP API offers additional features like voice delivery, which is a simple way to make sure people get their OTPs right away — with added security.

Create a one-time password, send it by SMS or voice message and begin authenticating users, accounts and transactions
Fully secured algorithm (RFC 6238)
Customize sender ID and message content
Support for up to 100 language and voice profiles for voice messaging
3-10 characters, flexible content type, control OTP validity duration and minimum resending interval
Track messages’ sent, delivered, and conversion rates using our customer portal dashboards
Fall back to Voice Message to ensure high conversion rate
Monitor, track and ensure high levels of conversion and deliverability with our robust reporting dashboard
Integrate single or bulk SMS API and start sending messages from your mobile or web app.
See it in action! Sign up with 8x8 Connect – an all-in-one business communication platform used by knowledge-driven businesses to manage omni-channel campaigns, send text or voice messages, and get real-time reports and analytics.
With our fully-supported SMS gateway you can send and receive messages in a matter of minutes.
Keep customers in the loop on status of deliveriesor send important appointment reminders.
Upgrade your A2P messaging experience in the US with 10 Digit Long Code, now supported by 8x8.
An add-on feature that allows you to fully integrate web surveys into your SMS workflows. Something better than a 2-way SMS.