• Online Banking: To authenticate users during login and transactions, ensuring secure access to financial accounts.
• E-commerce Checkout: To verify customer identity during the checkout process, reducing the risk of fraudulent purchases.
• Account Registration: To confirm user identity during account creation by sending a verification code to their mobile device.
• Password Recovery: To securely verify users when they request to reset their passwords, ensuring only the rightful owner can make changes.
• Two-Factor Authentication (2FA): To enhance security for sensitive applications by requiring a second verification step via SMS after entering a password.

See also at GSMA:

• Online Password Reset using SMS OTP: Online Password Reset using SMS OTP

The One Time Password SMS API has several benefits for the API consumer:

• Enhanced Security: OTPs provide an additional layer of security beyond passwords, reducing the risk of unauthorized access.
• User Verification: Ensures that the user has access to the registered mobile device, confirming their identity.
• Fraud Prevention: Helps in preventing fraudulent activities by requiring a unique code for each transaction or login.
• Ease of Use: Users can easily receive and enter codes via SMS, making the process straightforward.
• Time-Sensitive: OTPs are typically valid for a short period, minimizing the risk of interception.
• No Additional Hardware: Users do not need to carry extra devices; they can use their existing mobile phones.
• Scalability: APIs can handle a large number of requests, making them suitable for businesses of all sizes.
• Integration Flexibility: Easily integrates with existing systems and applications for seamless user experience.
• Cost-Effective: Reduces the need for complex authentication systems while providing strong security.
• User Trust: Increases user confidence in the security of the platform, leading to higher user satisfaction.
• Operational efficiency for the API customer (cost savings).