What this API does
The GetOTP API is a robust solution designed to simplify the process of sending and validating one-time passwords (OTPs) across multiple channels including SMS, email, and WhatsApp. This API enables developers to quickly implement secure two-factor authentication (2FA) and phone verification mechanisms, enhancing the security of their applications.
How it works
Developers can send HTTP POST requests to the API to generate OTPs for users. The generated OTP can be sent through SMS, email, or WhatsApp, allowing for flexible integration. Validation is achieved by sending a subsequent request to verify the OTP entered by the user. All interactions utilize JSON format for data exchange.
Authentication
This API requires API key-based authentication. Developers must include their API key in the request headers to gain access to the endpoints.
Example usage
/sendOTP- Sends an OTP to the user's designated contact method (SMS, email, or WhatsApp)./validateOTP- Validates the submitted OTP against the one generated and sent.
Limits
The service offers 500 free requests per month. Users must monitor their usage to stay within this limit.
Ideal use cases
- Implementing two-factor authentication in web and mobile applications.
- Verifying user identities during sign-up or login processes.
- Enhancing security in sensitive transactions or account recoveries.