published

GetOTP API

The GetOTP API offers an open-source solution for generating and validating one-time passwords, enhancing security in authentication workflows across applications.

Developed by OTP Dev

Live API
99.90%Uptime
150msLatency
850Stars
API KeyAuth
NoCredit Card
RESTStyle
v1Version
API Endpoints

Reference for available routes, request structures, and live examples.

Creates one-time passwords for authentication flows

Full Endpoint URL
https://otp.dev/generate
Implementation Example
curl -X POST 'https://otp.dev/generate' \
  -H 'Authorization: Bearer YOUR_API_KEY'
Request Payload
{
  "expiry": 300,
  "length": 6
}
Expected Response
{
  "otp": "A3F9B7",
  "expires_at": "2023-07-18T15:30:00Z",
  "remaining_seconds": 300
}
Version:v1
Limit:50 OTPs/hour
Real-World Applications
  • Implementing secure user authentication via OTPs on websites.Optimized Capability
  • Enhancing login processes in mobile applications.Optimized Capability
  • Integrating OTP validation for transaction confirmations in fintech services.Optimized Capability
  • Facilitating account recovery processes using OTPs.Optimized Capability
Advantages
  • ✓ Open-source with community contributions.
  • ✓ Simple RESTful API design with JSON responses.
  • ✓ Flexible integration for various platforms and languages.
  • ✓ No strict rate limits encourage scalability.
Limitations
  • ✗ No built-in support for multi-factor authentication workflows.
  • ✗ Limited native SDK support; mostly REST API integration.
  • ✗ No explicit SLAs beyond uptime guarantee.
  • ✗ Lacks detailed built-in analytics of OTP usage.

FAQs

API Specifications

v1
Pricing Model
Freemium with pay-as-you-go options
Credit Card
Not Required
Response Formats
JSON
Supported Languages
6 Languages
SDK Support
REST Only
Time to Hello World

Less than 30 minutes from signup to first OTP generation.

Rate Limit

1000 requests per hour

Free Tier Usage

Up to 500 OTP requests per month with full feature access.

Use Case: Best For

Developers seeking an easy-to-integrate, open-source OTP solution for secure authentication.

Not Recommended For

Enterprises needing advanced multi-factor authentication and analytics out-of-the-box.

Resources

Documentation Official Website Pricing Details Postman Collection
#authentication#security

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