Build modern, high-quality voice applications in the cloud with In-App and carrier connectivity.
Start the Conversation with Certainty
Messaging and Voice verification protecting the conversation between your business and users.
Try It FreeContact SalesNeed proof?
Meet our full-service API.
Validating genuine customers just got easier. Our patented 2FA technology helps you protect against fraud, build trust, and increase conversion across multiple channels—no telecom or security experience required. Plus, you’ll only pay for successful verifications.
More flexible and powerful than ever.
Verify now gives customers the ability to generate and manage their own PIN codes and even customize the failover sequence to other communication channels. Authenticate end-users using your preferred channel, and add other channels like WhatsApp and Facebook Messenger as they become available.
See how our pre-packaged Verify API helps businesses like yours succeed.
Acquire genuine customers.
Easily add a layer of protection by using a phone number to authenticate new and existing customers
See Two Factor AuthenticationProvide convenience without compromise.
Ensure safe access by delivering time-limited, single-use authorization codes with Passwordless Authentication.
See Passwordless AuthenticationProtect your business from fraud.
Prevent expensive fraudulent transactions using up-to-date phone number intelligence with Fraud Detection and Step-Up Verification.
See Fraud Detection and Step-Up VerificationEradicate spam more effectively.
Block botnets and bulk account creation via frictionless phone verification for new users with Spam and Botnet Prevention.
See Spam and Botnet PreventionDiscover more ways our Verify API can simplify your application’s authentication process.
See All Use CasesGet smarter fail-safe, reliable delivery, and tailor-made messaging.
Intelligent Failover
Automatically resend PIN codes via voice (TTS) to customers through one API request without additional code.
Adaptive
Routing
Ensure optimum delivery by proactively re-routing messages around congestion—like GPS for your SMS.
Flexible Implementation
Choose from two Verify models: Verify Conversion or Verify Request.
Verify Conversion
Our full-service, per-conversion model allows you to start authenticating phone numbers across the globe with just a few lines of code. Verify manages the PIN code with auto failover to additional channels when needed.
Verify Request
Our per-request model allows our customers to manage their PIN code and customize the failover sequence to additional channels.