Twilio offers developers a powerful API for phone services to make and receive phone calls, and send and receive text messages. Their product allows programmers to more easily integrate various communication methods into their software and programs. | Nexmo connects your apps directly to carriers around the world. Integrate SMS and Voice messages using one simple API. Use Nexmo Verity to register users, verify transactions, and implement two factor authentication. |
Phone- Phone Numbers API;Phone- Convert Text to Speech and Play Audio;Phone- Record Calls and Store Them;Phone- Create Conferences;Phone- API Queueing;Phone- Call Queues;Phone- Convert Speech to Text;Phone- Usage API;Phone- Status Callbacks and Logs;Phone- Global Reach;SMS- Supports Unicode;SMS- Message Queueing;SMS- Realtime API;SMS- Global Reach;SMS- Status Callbacks and Logs;SMS- Usage metering & API triggers;SMS- Voice Enabled Numbers;SMS- Short Codes;Two-factor authentication;Call tracking;Voice broadcasting;Cloud IVR;Mobile app distribution | Inbound SMS; Outbound SMS; Outbound Text-To-Speech Calls; Outbound VoiceXML Calls; Inbound VoiceXML Calls; Outbound SIP;
Inbound SIP;
Number Verification;
Number Insight |
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Stacks 11.5K | Stacks 184 |
Followers 8.8K | Followers 344 |
Votes 521 | Votes 56 |
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Plivo provides basic building block APIs in the form of Plivo XML and HTTP API, to create telephony apps, so developers can completely do away with learning the nitty-gritty of the telephony plumbing.

Agora.io provides building blocks for you to add real-time voice and video communications through a simple and powerful SDK. You can integrate the Agora SDK to enable real-time communications in your own application quickly.

It adds the clarity and emotion of face-to-face communication to your brand whether you're developing for the web, iOS, or Android. We make the integration of high-quality live video a breeze so that you can focus on building a great product.

Send and receive SMS globally with the SMS gateway. Trust your business messaging with reliable, direct routes, and lightning fast message delivery.

At MessageBird we believe that communicating with a business should feel as natural as communicating with a friend. That's why our SMS, Voice and Conversations APIs continue to revolutionize company-customer interactions.

BulkSMS.com is a leading SMS messaging service provider offering two-way SMS communication services. The BulkSMS gateway reaches across borders and connects to over 800 mobile network operators world-wide.

It is a business mobile messaging service provider that enables businesses of all sizes and industries to deliver and manage SMS text messages from PC, web, email or API.

Postscript lets you easily create and manage SMS marketing campaigns with detailed analytics designed to increase sales and revenue, not just clicks.

Braze is a comprehensive customer engagement platform that powers relevant and memorable experiences between consumers and the brands they love.

It is a global leader in omnichannel engagement. We help our clients and partners overcome the complexity of consumer communications & grow their business.