Twilio
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.
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Infobip
Infobip is a global leader in omnichannel engagement powering a broad range of messaging channels, tools and solutions for advanced customer engagement, authentication and security. With over 700 direct carrier connections and 60+ offices on 6 continents, Infobip is the #1 choice of some of the world's biggest companies to scale their customer communications.
We help our clients and partners overcome the complexity of consumer communications, grow their business and enhance customer experience, all in a fast, secure and reliable way. With Infobip, you can achieve deeper customer engagement across the widest selection of local and global channels, including:
SMS
MMS
RCS
Live Chat
WhatsApp Business
Apple Messages for Business
Facebook Messenger
Instagram Business
Telegram
Viber
Voice / VOIP
Video
Email
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ClickSend
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.
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Telnyx
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.
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