🔄 What is Send and Verify API in OTP & Email Authentication?
When implementing OTP (One-Time Password) or Email Authentication, businesses rely on two key API functions: Send API and Verify API. These APIs work together to secure and validate user identity during logins, sign-ups, and sensitive transactions.
📤 Send API – What Does It Do?
The Send API is used to generate and deliver an OTP or verification code to the user via SMS, email, or WhatsApp.
✔️ Key Functions:
- Generates a random, secure OTP
- Delivers the OTP to the user’s mobile number or email
- Logs the delivery request with a unique transaction/session ID
Example: An OTP is sent to +91XXXXXXXXXX or user@example.com after a login attempt.
✅ Verify API – What Does It Do?
The Verify API checks whether the OTP entered by the user matches the one that was sent, within the valid time frame.
✔️ Key Functions:
- Accepts user-submitted OTP and session ID
- Validates the OTP against the original code
- Checks for expiration or retry limits
- Returns success or failure status
Example: A user enters "473829" as OTP. The Verify API checks it against the stored OTP and confirms validity.
⚙️ How Muzztech Makes It Easy
- 📡 Simple REST API endpoints for both Send and Verify
- 🔐 Built-in encryption and session ID handling
- 📊 Logs and analytics for every OTP transaction
- 🧩 Seamless integration with websites, apps, and CRMs
- ⏳ Expiry and retry limit control via dashboard
💡 Use Case Scenarios
| Use Case | Send API | Verify API |
|---|---|---|
| User Sign-Up | Send OTP to phone/email | Verify entered OTP |
| Login via OTP | Send OTP after username | Validate OTP for login |
| Transaction Approval | Send OTP for confirmation | Verify before processing |
📞 Need Help Integrating?
Muzztech Wireless Pvt Ltd provides complete documentation, sample code, and integration support for OTP and Email Authentication APIs.
Reach us at: support@muzztech.co.in