Skip to content

Quickly verify users via SMS OTPs

SMS Verify makes it simple to send one-time passcodes (OTPs) to your users. Make a request with the end user’s phone number, and we take care of the rest.  Sign up for a free trial account to get started. 


curl -u "ABC1DE23-A12B-1234-56AB-AB1234567890":$API_KEY \
     --url https://rest-ww.telesign.com/v1/verify/sms \
     --header 'accept: application/x-www-form-urlencoded' \
     --header 'content-type: application/x-www-form-urlencoded' \
     --data phone_number="11234567890"

Security you can count on 

Make sure your customers and platform are safe and secure with easy to implement one-time passcodes (OTPs) and multi-factor authentication (MFA).

id card icon

Prevent fake users 

Validate and authenticate legitimate users and prevent fraud–from sign-up to log out. 

shield lock icon

Protect account access 

Confirm user identity by adding an extra layer of security to an account. 

clock and lightning to signify speed

Save time and resources 

Use autogenerated OTPs for easy deployment. 

Clients who use this product
Fiverr logo grey
affirm logo