Enterprise Use Case: B2B SaaS & Platforms

Frictionless SaaS authentication infrastructure.

Protect your software application with a robust Two-Factor Authentication (2FA) and phone verification API designed exclusively for development teams building for the Nepali market.

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Built by developers, for developers

Integrating user authentication shouldn't take your engineering team days. NepalOTP provides a modern, RESTful API that allows you to implement phone verification securely in a matter of minutes.

Isolated Sandbox Environment

Test your entire integration logic safely using dedicated Sandbox API keys. Simulate successful deliveries, network timeouts, and incorrect codes without spending real credits or dispatching physical SMS messages.

Real-time Delivery Webhooks

Never implement expensive HTTP polling. Register a webhook URL in your dashboard to receive instant, cryptographically signed HTTP callbacks directly to your servers the millisecond a message is delivered or rejected.

Automated Rate Limiting

We automatically enforce IP and phone-level rate limiting at the infrastructure edge. This prevents malicious actors from brute-forcing OTP endpoints or draining your API credits via SMS pumping botnets.

Native SDKs & Libraries

Accelerate development by dropping in our official, open-source packages for Laravel, Node.js, and Python. Handle complex authentication requests and error catching with simple, single-line method calls.

Zero Trust & Role-Based Access

In B2B SaaS platforms, protecting client data is paramount. A single compromised password can lead to catastrophic data breaches. Implementing a Zero Trust architecture means assuming that passwords will eventually be compromised.

By integrating NepalOTP, you can easily enforce 2FA (Two-Factor Authentication) for specific high-risk actions. For example, standard users may log in with a password, but if a user attempts to access the Billing portal or delete a project, your backend can challenge them with an instant SMS OTP.

The Engineering Reality of OTPs

Building an OTP system in-house requires managing significant state. You need database tables to store the generated code, background cron jobs to purge expired codes, logic to handle users requesting multiple codes in a short span, and complex carrier routing logic.

AuthController.ts (State-free implementation)

import { NepalOTP } from '@nepalotp/node';

const client = new NepalOTP(process.env.NEPALOTP_API_KEY);

// 1. Generate & Send OTP (No database required)
export const requestLogin = async (req, res) => {
  const { phone } = req.body;
  const otp = await client.otp.send({ phone });
  
  // Return the NepalOTP assigned ID to the client
  res.json({ otpId: otp.id });
};

// 2. Verify User Input securely via API
export const verifyLogin = async (req, res) => {
  const { otpId, code } = req.body;
  
  // The API handles expiration and retry lockouts natively
  const valid = await client.otp.verify(otpId, code);
  
  if (valid) return res.json({ token: 'jwt_xyz...' });
  throw new Error('Invalid code');
};

By utilizing NepalOTP, your application remains completely stateless regarding authentication codes. We handle the telecom complexity, the database storage of the hashed OTP, and the expiration logic, allowing your engineers to focus purely on building your SaaS product.