Best SMS Gateways for Linux

ClickSend is a simple, global SMS platform built for developers and the businesses they support. Built on a battle-tested API that always delivers with: - Billions of messages delivered globally - Direct routes only to 190+ countries - 99.95%+ uptime - Lightning-fast delivery - Pay-as-you-go pricing — no lock-ins - 24/7 support from people who actually understand APIs - It works straight out of the box — and keeps working as you scale. Already use Zapier, ActiveCampaign, Make or Power Automate? There are pre-built integrations ready to go. Sign up and send your first message in minutes with free test credits. Perfect for: alerts, 2FA codes, marketing campaigns and transactional messaging.

Design and deploy your ideal customer engagement experience. Twilio is a single fully-programmable platform with flexible APIs for any channel and over 400+ integrations, backed by a community of over 9 million developers. Build accurate and personalized experiences for your customers, easily and at scale, using SMS and WhatsApp messaging, voice, video, email, and more. Browse documentation and SDKs in multiple coding languages, including Ruby, Python, PHP, Node.js, java, and C#, or jumpstart your first project with our open source code templates to quickly build production-ready communications apps. Sign up and start building today.

Telnyx is a global communications infrastructure platform that provides voice, messaging, networking, and AI-powered real-time communication capabilities through a fully owned telecom stack. The platform combines carrier-grade networking, programmable identity systems, AI inference, and low-latency communication infrastructure to support real-time conversational AI agents and enterprise communication workflows. Telnyx owns and operates its entire network stack, including physical infrastructure, mobile core systems, edge processing, and AI compute layers, enabling faster performance and lower latency without relying on third-party telecom providers. The platform offers tools such as voice agent builders, speech-to-text, text-to-speech, global phone numbers, AI orchestration, and programmable compliance controls for building intelligent voice and messaging systems.

SMS Marketing Services made easy. Instantly send 10 or 100,000 SMS or MMS picture text messages to any mobile phone number. Easily build an opt-in subscriber list. Schedule text messages to go out any time you want. Track text message delivery. Our plans start at only $24 per month. Or try our Annual Plans and pay up-front for one year, and get 20% more messages instantly. Plus FREE bonus messages on the Annual Plan.

SMSEagle is a hardware SMS gateway that enables SMS messages to be sent directly to telecommunication carrier without 3rd party services and without the Internet. This is achieved by using a SIM card, built-in radio modules with external antenna to communicate directly with a telecommunication operator (works similar to mobile phones). Hardware SMS gateway, also known as SMS server, integrates hardware and software for managing communication. The device offers various methods for integration with external systems like API, Email To SMS, etc. Support of different message types (normal SMS/multipart SMS/flash SMS/MMS/binary SMS/USSD-code/WAP Push link) Unicode support (support of national characters) Sending to single users or groups of users Sending SMS at specified date and time (SMS scheduling) Limit sending to specified hours (for example between 08:00-18:00) Smartphone-like conversation mode (messages are nicely grouped by phone number). and many more...

Mobile Message is Australia's most affordable bulk SMS platform, with pricing from just 2¢ per SMS. Built for Australian businesses, we deliver 100% of messages direct to local carriers — no offshore routing. Send bulk SMS campaigns, appointment reminders, alerts, and marketing messages through our web dashboard, REST API, or integrations with Zapier, Make, and HubSpot. Every account includes a free dedicated virtual number for two-way messaging, contact management, scheduling, templates, personalisation, and automatic opt-out handling. No monthly fees. No credit expiry. No hidden charges. Just pay for the SMS you send. We're an ACMA Certified Provider for Australia's Sender ID Register and our Melbourne-based support team is here to help. Over 1,000 verified reviews with a 4.9/5 rating. Start free at Mobile Message with 50 SMS credits, no credit card required.

TeleOSS Messaging Suite is a converged delivery platform for all messaging channels viz. SMS, USSD, MMS, IVR, eMail, eFax. It is a ready to integrate platform with SMPP, SS7, SIGTRAN, SDP, HTTP protocols and a central control management interface for all business & technology needs. Offers Messaging Solutions for Gateway, Router, Hub, Trivia, M2M, Mcommerce & Business solution platform.