Introduction
Sending OTP (One-Time Password) is used in apps for login and verification.
If OTP is slow, users leave. If OTP is fast, users stay.
This guide shows how to send OTP using API.
What You Need
- API key
- Phone number
- Basic setup
Steps
Step 1: Get API Key
Get API key from SMS provider.
Example:
API_KEY = "your_api_key"
Step 2: Add Phone Number
Use correct format.
Example:
+919876543210
Step 3: Send OTP
POST /send-otp
{
"api_key": "your_api_key",
"phone": "+919876543210",
"message": "Your OTP is 1234"
}
Step 4: Response
Why Speed Matters
- Fast OTP = good user experience
- Slow OTP = users leave
Conclusion
OTP API is simple.
Use fast and reliable service for better results.
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