SMS SMS

Portechime SMS API — reliable delivery at scale

Backed by global direct‑to‑carrier connectivity and smart routing, achieve 99.99% availability for verification, notifications, and marketing SMS.

SMS Communication
Hi Sasha. Your order is on its way.
Hi Charlie. Thank you for your enquiry.
Hi Georgie. Your online check-in is confirmed.
Flight Alert: Gate changed to B6.

Why 5,000+ companies trust Portechime

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years of experience
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annual SMS deliveries
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Live chat and email support
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Integrations across your stack

A global SMS provider covering end‑to‑end business scenarios

Our enterprise SMS service supports common use cases with industry‑leading delivery rates. Built‑in anti‑fraud, personalization, and more.

Promotional SMS

Marketing SMS

Engage across the journey with targeted campaigns and promotions.

SMS 2FA

SMS 2FA

Protect accounts with two‑factor authentication or OTP via SMS.

Transactional SMS

Transactional SMS

Automate order confirmations, updates, and welcome messages.

SMS reminders

SMS reminders

Reduce no‑shows with reminders for appointments and key dates.

SMS notifications

SMS notifications

Send urgent notifications and ensure they get read in time.

SMS marketing

SMS marketing

Send personalized, automated campaigns to lift conversions.

SMS services for every industry

From startups to large enterprises, we've distilled common challenges and best practices—so you can launch faster.

Financial services

Financial services

Reach, engage, and retain more clients with targeted text message marketing solutions for finance.

eCommerce

E‑commerce

Lift performance and CX with targeted campaigns, personalized offers, and real‑time updates.

Enterprise

Enterprise

Engage customers globally with a reliable, compliant SMS solution and leading support.

Telecoms

Telecom

Enhance telecom services with reliable SMS for seamless communication and engagement.

Real estate

Real estate

Optimize operations with alerts, appointment reminders, and client updates.

Travel and hospitality

Travel & hospitality

Improve guest experience via booking confirmations, tailored offers, and instant support.

Sending 2FA/OTP? Boost conversions with Portechime Verify

Verify is purpose‑built for 2FA, OTP, passkeys, and silent network authentication.

Help more users pass verification

Verify is a fully managed, multi‑channel authentication solution optimized for redundancy, low latency, and global scale.

  • Security measures built‑in
  • Global compliance and regulatory alignment
  • Verification Fraud Guard provides 100% SMS pumping protection*
  • Deliver via SMS, WhatsApp, voice, TOTP, push, passkeys, and more

Frequently asked questions about enterprise SMS

What is enterprise SMS?

Enterprise SMS is designed for high‑reliability, large‑scale messaging. Key benefits include:

  • No internet required—works on all mobile devices
  • Fast, secure, and ideal for two‑factor authentication
  • Automatable and highly personalizable
How do businesses use SMS?+
How do I start with enterprise SMS?+
How is pricing calculated?+
How can I send bulk SMS?+
How do I automate SMS sending?+
What numbers can I use?+

A widely trusted SMS provider

Recognized by customers for reliability, performance, and support.

Juniper Research

Trusted by global brands

Proven at scale across regions

Gartner

Enterprise‑grade security

Compliance and certifications

Metrigy

High delivery performance

Smart routing and direct connectivity

Omdia

Developer‑friendly

Clear docs and SDKs

Portechime's 2FA SMS solution is reliable and cost‑effective, with hands‑on technical support throughout deployment.

How to activate international SMS

Open Account

Open a dedicated Portechime account

API Docking

Integrate the API and test routes

Signing Contract

Sign the service agreement

Load Quota

Add balance and start sending

Developer‑friendly international SMS API

Clear docs, high availability routes, and global reach across 200+ countries and regions.

Messaging channel API integrations

We support SMS, WhatsApp Business, Apple Messages for Business, Viber, and more—enabling seamless engagement across channels. See examples in PHP, C#, Node.js, and Java.

php
$client = new TextClient('your-api-key');
$message = new Message('Message text', 'Sender_name',
    ['Recipient_PhoneNumber']);
$message
    ->WithChannels([Channels::WHATSAPP])
    ->WithHybridAppKey('your-secret-hybrid-app-key')
    ->WithRichMessage(
        new MediaMessage(
            'cm.com',
            'https://avatars3.githubusercontent.com/u/
8234794?s=200&v=4',
            'image/png'
        )
    )
    ->WithSuggestions([
        new ReplySuggestion('Opt In', 'OK'),
        new ReplySuggestion('Opt Out', 'STOP'),
    ]);
$result = $client->send($message);

Our popular HTTP‑to‑SMS API uses a RESTful design with simple query parameters.

Contact us

Start your global messaging journey and explore more possibilities