Compare the Top Free Communication APIs as of October 2025

What are Free Communication APIs?

Communication APIs are interfaces that allow developers to integrate various communication features such as voice, video, messaging, and email into their applications, websites, or services. These APIs enable businesses to add real-time communication capabilities without building the infrastructure from scratch, offering functionality like SMS notifications, voice calls, video conferencing, in-app messaging, and more. By leveraging communication APIs, businesses can automate communication processes, improve customer engagement, and enhance user experience. Many of these APIs are flexible, allowing developers to customize and scale features based on specific needs. Communication APIs are essential for businesses looking to streamline communication and provide seamless, integrated experiences across different platforms and devices. Compare and read user reviews of the best Free Communication APIs currently available using the table below. This list is updated regularly.

  • 1
    Digital Samba

    Digital Samba

    Digital Samba

    Founded in 2003, Digital Samba is a privacy-first video conferencing provider operating from within the European Union — home to the world's strongest data protection laws — and serving a global audience. Our solutions are designed with zero tracking, robust security, and long-term reliability at their core. We offer both a free, ready-to-use platform for meetings, education, webinars, training, and events, as well as Digital Samba Embedded, an API and SDK that enables organisations to integrate fully customisable, branded video conferencing directly into their own applications. Digital Samba combines minimalist design with powerful features, including HD video and audio, screen sharing, breakout rooms, interactive whiteboards, AI captions and summaries, polling, Q&A, and secure cloud recordings. For developers and enterprises, advanced options such as full white labelling, CNAME support, API control, and webhooks make deep integration seamless.
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    Starting Price: €0.0026
  • 2
    Weavy

    Weavy

    Weavy

    The complete in-app collaboration API and SDK. Add contextual activity feeds, chat, and document collaboration directly into your apps to increase user engagement, improve in-app retention, and reduce customer churn. All Weavy features include integrations to the third party tools your users are already familiar with: add capabilities for Zoom and Teams video conferencing, Google Drive, Dropbox, or Box file sharing, document sync and versioning contextually inside your app. Weavy allows app developers to quickly add the features that users need to be productive and interactive, directly within the app environment. With our SDK and APIs, you can deploy chat, feeds, and document sync in a matter of days, not months, and at a fraction the cost to build in-house. Focus on your core product while simultaneously adding functionality that makes your user experience not only better, but increases user engagement and dependency on your app.
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    Starting Price: $0/Month
  • 3
    TENIOS

    TENIOS

    TENIOS

    TENIOS is a German-based communications provider specializing in advanced AI phone assistant and telephony solutions for businesses. Their comprehensive telecom-platform offers services such as virtual phone numbers, intelligent call routing, interactive voice response (IVR) systems, SMS, RCS, and a robust Voice API for seamless integration of voice applications. TENIOS also provides AI-powered phone assistants to automate customer interactions, enhancing efficiency in contact centers and diverse sectors with high call volumes. With over two decades of experience and hosting in Germany, TENIOS ensures reliable and scalable communication solutions tailored to meet diverse business needs.
    Starting Price: €50/ month (Pay as YouGo)
  • 4
    MSG91

    MSG91

    Walkover Web Solutions

    MSG91, a cloud communication platform strives to help businesses and developers to seamlessly add communication to their services and software through communication APIs (SMS, Email, Voice, RCS, WhatsApp, and more) and ready-to-use solutions like Cloud contact center and customer segmentation products.
    Starting Price: $10.00/one-time
  • 5
    Bird

    Bird

    Bird

    Bird (formerly MessageBird) is the next-generation CRM for Marketing, Sales, and Payments, powering over 5 trillion annual messages across Email, SMS, and WhatsApp. Leading brands grow cost-efficiently with Bird through personalized interactions on Email, SMS, and WhatsApp. The world's most innovative companies build communication solutions using Bird's applications and APIs. Get started today and talk to your customers over any channel, for any use case, anywhere in the world. Marketing messages, push notifications, order updates, delivery alerts and more. Operational bottlenecks slowing your growth? Use automated conversations and workflows to collect critical information up front, reduce manual tasks, implement self-service flows, and route chats to the right agent. Get up and running in minutes on our reliable, auto-scaling APIs with extensive documentations, complete API references and intuitive SDKs.
    Starting Price: $45 per month
  • 6
    PubNub

    PubNub

    PubNub

    Innovate with Realtime Features: We take care of realtime communication infrastructure so you can focus on your app. Our Platform for Realtime Communication: A platform to build and operate real-time interactivity for web, mobile, AI/ML, IoT, and Edge computing applications Faster & Easier Deployments: SDK support for 50+ mobile, web, server, and IoT environments (PubNub and community supported) and more than 65 pre-built integrations with external and third-party APIs to give developers the features they need regardless of programming language or tech stack. Scalability: The industry’s most scalable platform capable of supporting millions of concurrent users and allows for rapid growth with low latency, high uptime, and without financial penalties. Security & Compliance: Enterprise-grade security and compliance with the most stringent regulations worldwide, including GDPR, SOC 2, HIPAA, ISO 27001, and CCPA.
    Starting Price: $0
  • 7
    Gupshup

    Gupshup

    Gupshup

    Headquartered in Silicon Valley, Gupshup is a leading conversational messaging platform that enables businesses to build engaging conversational experiences seamlessly across 30+ messaging channels using a single API. Gupshup offers an easy-to-use omnichannel messaging API, advanced bot-building platform and mobile marketing tools. Gupshup's messaging platform handles over 6 billion messages per month enabling over 39,600 businesses send messages to several billion users across popular messaging channels such as SMS, Voice, WhatsApp, Mobile Web, Android RCS, Instagram, Twitter, Telegram, WeChat, FB Messenger, Slack, Viber, Skype and many more. Gupshup's constant innovation enables it to offer market leading features on its platform, enabling developers to build Interactive, Programmable and Rich omni-channel CX journeys across messaging services
    Starting Price: $0.01
  • 8
    Authkey

    Authkey

    Authkey.io

    Authkey is a multi-channel CPaaS platform providing SMS API, WhatsApp Business API, Voice API, Email API, and Google RCS. It helps businesses send notifications, promotional messages, transactional messages, OTPs, 2FA, and more. Designed for responsiveness and ease of use, Authkey allows you to start without adding any credit cards. Authkey offers a free sandbox account for building, testing, and deploying. It supports easy-to-integrate APIs for all channels and over 1,000 automation options via Zapier, Pabbly, Integrately, and other partners. You can easily push bulk campaigns through all channels. WhatsApp Chatbot for intelligent customer query responses. Join over 200 active businesses working with us and grow together.
    Starting Price: $0
  • 9
    Dyte

    Dyte

    Dyte

    Dyte's Video SDK and APIs are SOC 2, GDPR and HIPAA complaint. That lets you embed scalable, customisable and interactive video calls within minutes into your Web, Desktop or mobile apps. Collaborate efficiently with HD video, chat, screen sharing, whiteboard, emoji reactions, file sharing and everything a user packaged within one SDK. Dyte's Video Conferencing SDK & APIs are comfortable with React JS, Angular, JavascriptMobile: Flutter, Kotlin, Swift, React Native, Android, iOSDesktop, Electron. With an uptime of 99.99%, industry-leading documentation and out of the box plugins, customize the video experience for your ed-tech, tele-health, fitness, HR-tech, social or gaming platform. Use Dyte's SDKs to build fully custom video experiences powered by a robust infrastructure. With our out-of-the-box chat, plug-ins, recording, and several useful features, Dyte is an all-in-one SDK to help you take video collaboration to the next level. Dyte offers 10K free credits each month
    Starting Price: $0
  • 10
    Video SDK

    Video SDK

    videosdk.live

    Saving your time in building UI and features for your video calling application. With just 5 lines of code, you'll be able to integrate video calls into your application. Generate API Key to eastablish connection in-between your app to Video SDK. It enables end-to-end secure connection in-between your app and our servers. Install the simple JavaScript code in your website. In just few lines of code, you can build interactive video calling app. Analytics Dashboard will help you to monitor all the usage of services and also provide manual operations control. Everthing you need to build custom and branded live shopping experiences for eCommerce brands at any scale. Everthing you need to build custom and branded highly secure telemedicine communication APIs and SDKs at any scale.
    Starting Price: $0.6 per min
  • 11
    ZEGOCLOUD

    ZEGOCLOUD

    ZEGOCLOUD

    Embed engaging real-time voice, video, and in-app chat experiences into your apps with ZEGOCLOUD's communications APIs. Get started with 4 lines of code and enable enriched interactions with more features. Use our voice, video, and in-app chat SDKs to develop the exact communication features your users need to connect, share, and interact with each other anytime, anywhere. Liven up the interactions and elevate the vibes for your users with a rich set of add-ons, including emotionally responsive avatars, AI-powered video effects, whiteboards, and more. Monitor the quality of communications in real-time and gain insights into your user experience with our powerful monitoring and analytics tools, so you can respond to any issues swiftly and improve your services continuously. ZEGOCLOUD's social solutions help you build 1-on-1 and group video calls, live audio rooms, and social live streaming into your apps to help your users connect and have fun together.
    Starting Price: $0.59 per 1000 minutes
  • 12
    smsmode

    smsmode

    smsmode©

    Communication Platform As A Service (CPaaS). smsmode© provides complete mobile messaging routing services. SMS, TTS, Google RCS or WhatsApp Business. Connect with your customers around the world via our innovative and powerful tools, with the level of security you need to ensure. smsmode© integrates easily with your existing tools to increase their potential through mobile messaging. Use our REST API, SMPP and plugins to create these custom integrations with your applications, CRM, ERP, and more. Our documentation and our experts will help you to reach your goals! European solution GDPR compliant ISO 27001 & 27701 99.95% SLA Responsability Europe CSR Commitment
    Starting Price: €9 per month + 4.40 cts / SMS
  • 13
    Infobip

    Infobip

    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
  • 14
    Bandwidth

    Bandwidth

    Bandwidth.com

    You want the best quality voice, messaging, and more. To get them, you need the only API provider with its own nationwide network. You can eliminate the middleman, save on costs, give yourself more control, and build the application that your customers are craving. You’re not new to this, but you need a partner to help you reach the scale you know you’re capable of. Whether you’re bringing your own carrier or building your own solution from the ground up, Bandwidth has the tools you need to reach your maximum potential. Bandwidth is a communications platform with limitless flexibility. You need integrations, enterprise-class APIs, and tools to manage your communications stack intelligently. We are open where you need it the most, with optionality and control. Our global network is directly connected to where it matters most. Giving unmatched reliability. Bringing your customers closer. Scaling wherever your business takes you.
  • 15
    ChatCamp

    ChatCamp

    ChatCamp

    Realtime Chat SDK and Messaging API for Apps & Websites. Integrate in-app messaging in your mobile apps & websites using ChatCamp platform. Product architecture to scale infrastructure on the go. Perfected for handling thousands of users at a time. We use world class infrastructure of Google Cloud Platform to provide most reliable service. We follow best practices of the industry to insure data security and privacy. Focus on building your application. No need to worry about building chat from scratch. We have got you covered. Use our chat SDK and messaging API to build a fully functional chat application. Android, iOS, Javascript and Platform API.
    Starting Price: $199 per month
  • 16
    QuickBlox

    QuickBlox

    QuickBlox

    Build your own messenger with chat and video calling in minutes using QuickBlox chat API and SDK. QuickBlox provides instant messaging API that allow chat and calling functionality to be added to any Android, iOS, or Web application. All features that you need to build a great messaging application. High quality one‑to‑one and group calling built on WebRTC. Flexible data and file storage that compliments your messaging. Integrate your current business processes with real‑time alerts and notifications. Share and link all types of files (images, audio, video, docs, and other file formats). Over 30,000 software developers and organizations worldwide are using QuickBlox messaging API. QuickBlox is a HIPAA‑compliant chat solution trusted by Healthcare businesses worldwide. We serve a variety of customers ranging from large corporations storing millions of healthcare and insurance records to startups entrusting their telemedicine communication to us.
    Starting Price: $99 per month
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