OTPless alternative with
CRM, broadcasts, and inbox included.

// Install
npm install @otpless/node

// Send OTP
const res = await fetch(
  'https://auth.otpless.app/auth/v1/initiate/otp',
  {
    method: 'POST',
    headers: {
      clientId: process.env.OTPLESS_CLIENT_ID,
      clientSecret: process.env.OTPLESS_SECRET,
      'Content-Type': 'application/json',
    },
    body: JSON.stringify({
      phoneNumber: '+919876543210',
      channel: 'WHATSAPP',
    }),
  }
);
const { requestId } = await res.json();

// Verify OTP
const verify = await fetch(
  'https://auth.otpless.app/auth/v1/validate/otp',
  {
    method: 'POST',
    headers: { ... },
    body: JSON.stringify({
      requestId,
      otp: '482910',
    }),
  }
);

// Install
npm install @emacrontechnologies/outreachagent

import { createClient } from
  '@emacrontechnologies/outreachagent';

const oa = createClient(
  process.env.OUTREACHAGENT_API_KEY!
);

// 1. Backend: create session
const { session_id, wa_link } =
  await oa.magicLink.init({
    context: 'login',
  });
// wa_link = "https://wa.me/91XXXXXXXXXX?text=..."
// (pre-filled message with hidden token)

// 2. Frontend: show button
// <a href={wa_link}>
//   Continue with WhatsApp
// </a>
// User opens WhatsApp, taps Send.
// No code to type. That's it.

// 3. Backend: poll for verification
const { verified, phone } =
  await oa.magicLink.status(session_id);

if (verified) {
  // ✅ phone = '+919876543210'
  // Issue JWT / create session
}

Also supports 6-digit OTP flow: oa.otp.send() + oa.otp.verify()