MsgAuth

Save up to 98% on phone

number verification

Benefit from many providers at once: Telegram, WhatsApp, etc

Automatically select the cheapest one for user's phone number

Benefit from many providers at once: Telegram, WhatsApp, etc

Automatically select the cheapest
one for user's phone number

Join waitlist

import { MsgAuth } from "msg-auth";

try {
	const msgAuth = new MsgAuth('api_key');

    const result = await msgAuth.sendCheapestMessage(phoneNumber);

    switch (result.strategy) {
        case 'cheap':
            console.log('Message sent successfully via cheapest method (telegram/whatsapp/other sms provider)!');

            const code = prompt('Enter the verification code sent to your phone:');

            const token = await result.confirm(code);

            await signInWithCustomTokenFirebase(token);

            break;
        case 'fallback':
            console.log('Fallback to Firebase for phone number authentication because it's cheaper for that country code.');

            await signInWithPhoneNumberFirebase(phoneNumber);

            break;
        default:
            throw new Error(`Unexpected strategy: ${result.strategy}`);
    }
} catch (error) {
    console.error('An error occurred during the authentication process:', error.message);
}

import { MsgAuth } from "msg-auth";

try {
	const msgAuth = new MsgAuth('api_key');

    const result = await msgAuth.sendCheapestMessage(phoneNumber);

    switch (result.strategy) {
        case 'cheap':
            console.log('Message sent successfully via cheapest method (telegram/whatsapp/other sms provider)!');

            const code = prompt('Enter the verification code sent to your phone:');

            const token = await result.confirm(code);

            await signInWithCustomTokenFirebase(token);

            break;
        case 'fallback':
            console.log('Fallback to Firebase for phone number authentication because it's cheaper for that country code.');

            await signInWithPhoneNumberFirebase(phoneNumber);

            break;
        default:
            throw new Error(`Unexpected strategy: ${result.strategy}`);
    }
} catch (error) {
    console.error('An error occurred during the authentication process:', error.message);
}

Easy to integrate
on top of existing solution

Fallback for free if user has no account in cheaper providers

Term of service

Refund policy

2024 MsgAuth

MsgAuth