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Create a better customer experience with SMS, Chat Apps, Video Interaction & Voice. It’s integrated communications platform as a service (CPaaS) streamlines multiple communications channels into a single dashboard.

Add In-App User-to-User Communication into Mobile Apps & Websites, with rich & engaging Text Chat, Video, and Audio Calling experiences, to Increase User Engagement and Enable new Revenue Streams.

It is ‪a chat API and SDK that enables users to build chat messaging functionality into their apps or websites within minutes, saving them months of development time.‬

ZEGOCLOUD provides global developers with real-time audio/video SDKs, AI Agents, low-latency live streaming, and in-app messaging solutions. Build high-quality voice chat, video calls, interactive live streams, and AI-powered companion or support experiences with a few lines of code.

This API allows you to build your own customized Telegram clients. It is 100% open for all developers who wish to create Telegram applications on our platform.

SendBird is a Messaging SDK, Chat API, and fully managed chat infrastructure for your mobile apps and websites. Embeddable chat for iOS, Android, JavaScript, Unity, .NET.

Use the Messaging API to build bots that provide personalized experiences for your users on LINE. You associate your bot with a channel on the LINE Platform. The bot works behind the LINE Official Account that is generated when you create the channel if you operate the account in bot mode.

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.

The Twilio API for WhatsApp provides developers all over the world with a simple, reliable, and officially supported way to use the WhatsApp Business API. They can now easily build messaging experiences that combine the ease of use of the Programmable SMS API with the global reach of WhatsApp.

Access WeChat’s 300 million users and make your app a global phenomenon.

Sinch makes it easy for developers to add voice, messaging and SMS to their apps with just a few lines of code. Enrich your apps with communications that your users will love.

Add powerful communication features to your mobile app and data services for your backend<br>

Chatkit is designed to make it as simple as possible to add chat to your app. It lets you add 1-1 and group chat to your app, along with typing indicators, file attachments and storage, user online presence and a flexible permissions system.

Chat API and SDK. With a beautiful UI Kit, easy to use React Components and powerful API. Add Chat to any application in a matter of hours. The tech uses Go, RocksDB and Raft. By the creators of Stream, the API that powers activity feeds for more than 300 million users.

Layer's asynchronous messaging fabric is capable of transporting payloads of any type. Get your users talking with chat, voice or video messaging. Pull them back in with push. Connect friends, colleagues or perfect strangers seamlessly.

TalkJS provides a chat API & Javascript SDK with a pre-built UI that allows developers to add chat between users on websites and apps in hours instead of months.

CometChat offers a comprehensive in-app chat SDK platform that equips businesses with the tools to integrate real-time chat, voice, and video into their applications.

LiveKit is a set of APIs and SDKs which make it easy to build and scale live video and audio features in your application. Use cases include interactive live streaming, video calls, communications in games, and robotics teleoperations.

TapTalk.io is a complete in-app chat SDK and messaging API. It designed to be easy to implement and give your user the best in-app chat experience. We provide you customizable UI based implementation and code based implementation.

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.

It is a smart messaging platform which enables businesses to build engaging conversational experiences seamlessly across 30+ messaging channels using a single API. It offers a comprehensive product portfolio that includes an easy to use omni-channel messaging API, advanced bot building platform and mobile marketing tools

Moxtra is the contextual communication + collaboration layer for your mobile and web applications|. Enhance user engagement by adding in-app communication+collaboration. Integrate chat, voice meetings, screen sharing and recording, and multimedia annotation. The Moxtra Cloud is mobile-first and is built to scale on demand to meet your growing needs.

It is a unified communications server software that brings together IP PBX, email, IM, faxing and collaboration functionality. It has a Web interface and includes capabilities such as a call center software with predictive dialing.

An open and extensible chat SDK and APIs for building powerful 1:1 and group chat quickly. Build core chat features quickly, extend functionality with a rich plugin library and customize with programmable Functions-as-a-Service. Powered by the PubNub Network.

Quickly add Voice, Video, SMS to your web and mobile applications. It is a communication platform which provides APIs that help clients quickly add Voice/Video/SMS to any application.

It is a simple and secure mobile and web chat library that enables you to add messaging in just a few minutes on your android, iOS, and web apps. No need to develop or maintain any infrastructure.

It brings rich communication APIs to all your applications across any device, on any platform, using the same reliable and secure infrastructure that powers Microsoft Teams.

Popcorn Notify is designed to be an effortless method for sending emails and text messages from your code. Client libraries are simple to install and are available on pip and npm.

Scringo offers a unique Community &amp; Messaging Platform that turns every app into an independent, dynamic &amp; fully functional social network.

It is a readymade chat solution on Android, iOS & Web. Its diverse uses of social, enterprise, in-app, and personal chat. It is 100% customizable, with full access to the source code.

The chat script will integrate seamlessly with your existing user database, even on a custom website. Free web chats room plugin online for video calling.

It provides realtime Chat SDK and Messaging API for Mobile Apps and Websites. It is developer friendly and can be installed into Android, iOS and Javascript applications within minutes.

MirrorFly is a leading CPaaS provider offering customizable text, voice, and video chat solutions for enterprises. The self-hosted Chat APIs and SDKs enable businesses to build their own chat platform with 1000+ messaging features.

Watchers - a simple way for apps to bring their communities back home. Right now, users of sports clubs, streaming platforms, and online learning apps are forced to talk somewhere else - in Discord, WhatsApp, Telegram, anywhere but inside the product they actually use. Brands lose engagement and have no way to build a real community on their own platform. We fix that. Watchers lets any product embed real-time chats, live discussions, reactions, and community rooms directly into their app or website. No separate messenger, no external platforms - users talk right where the experience happens. Our goal is simple: help apps build their own space for conversation and turn audiences into real communities.

The Talkray Developer API is a white-label cloud-hosted platform to easily enable all forms of real-time and asynchronous&nbsp;communication&nbsp;between your mobile users.&nbsp;With a few lines of code, you can connect your users together at&nbsp;unparalleled&nbsp;speed and scale.&nbsp;

TeleOSS provides high-throughput SMS gateway software, SMPP/SIGTRAN support, and global messaging solutions.

It is a complete sticker API for up-to-date chat interfaces. Engage your users with a fun, dynamic stickers. Give them the freedom to express and interact – and stay with you.

It is an open source Conversational Platform to store, structure and utilize conversational data in a secure and privacy-compliant way. It can power a variety of use cases, from hosting your own Messaging API to integrating with Conversational AI.