Communications API platform: Chat, Voice, Video, AI concierge | Sendbird

Power chat, calls, and business messaging with an award-winning communications API platform—and drive personalized interactions with an AI concierge that sparks delight.
TRUSTED BY 4,000+ APPS GLOBALLY
Enjoy higher message deliverability, open, and conversion rates. Intuitive APIs, sample apps, tutorials, and free trials make it easy to get started.
In-app messaging that increases conversions—the timing, tone, and flow have all been perfected for you.
Boost app engagement with high-quality voice and video calls with no lag—and massive scale.
Deliver message notifications through your app and double conversions at half the SMS cost.
Spark delight with proactive, personalized customer conversations from an AI concierge you can trust. Our agentic infrastructure makes it possible.
Monthly active users
Choosing Sendbird Chat means faster time to market, less maintenance, and more time to focus on your customer.
"Sendbird is an important partner for Carousell, and they power Carousell’s core transaction flows by providing a fast and reliable chat service between our buyers and sellers."
Monthly message count
"The onboarding package was exceptionally beneficial and responsive. The team quickly adapted and addressed our evolving needs, ensuring our requirements were met."
Of users return to the Redfin app within a week
To increase number of agent introductions
"With Sendbird's developer-friendly chat API and SDKs, we were quickly able to build a responsive and reliable messaging experience that our users love."
Increase in daily sent message count per user
increase in number of people messaging
With Sendbird, we offer 100% digital customer support via in-app chat, resulting in higher engagement and consistent CSAT scores of 5/5.
Decrease in customer support requests
Increase in customer interactions
"We chose Sendbird for two main reasons: it met our needs with its feature-rich chat service, and their client base assured us they could handle our traffic and growth."
Development time for voice and video calls
Sendbird Business Messaging wins API World’s award for Best Communications API
The recognition of our communication API celebrates our commitment to empowering businesses with powerful business communication tech.
Consumer preferences for sales, marketing, and support communications
A global consumer survey conducted by Arion Research and Sendbird found that half of all consumers miss communications from businesses regardless of the channels they use.
Harnessing the power of chat APIs for omnichannel engagement
Learn how and why businesses should adopt APIs to stay competitive and deliver exceptional customer experiences.
AI agent APIs: The bridge between autonomous intelligence and action
AI agents—autonomous systems that perceive, decide, and act to achieve goals on behalf of users—represent a step change from previous automation.
Discover how Sendbird’s communications API platform connects chat, calls, and AI to create effortless customer experiences.
A communications API platform provides a set of application programming interfaces (APIs) that enable developers to embed real-time communication features—like chat, voice calling, and push notifications—directly into their apps. Instead of building complex infrastructure from scratch, teams can use pre-built APIs for messaging, calls, and notifications to deliver seamless, scalable customer experiences faster.
Check out this guide to learn more about communication APIs.
Communication APIs connect your app to cloud-based services that manage message routing, data synchronization, and delivery in real time. Through API integration, you can quickly add custom communication solutions—for example, in-app chat or voice API calling—while maintaining full control over your brand experience and data protection regulations compliance.
Sendbird offers a full suite of communications APIs, including a Chat API, Voice API for voice and video calls, Business Messaging API, and tools for push notifications and AI-driven customer support. Each API is built to ensure speed and reliability, whether you’re building a marketplace, healthcare app, or on-demand service.
Yes. Sendbird’s flexible REST API and modular architecture make it easy to integrate with other communication platforms, including the WhatsApp Business API. This allows you to combine in-app messaging with external channels for a unified customer communication experience.
Check out our WhatsApp API integration.
Building communication solutions from scratch is resource-intensive and complex. A communications API platform like Sendbird provides pre-built, real-time communication features that are proven for speed, reliability, and compliance with global data protection regulations. This lets your team focus on creating exceptional customer experiences—not maintaining infrastructure.
Sendbird’s communications API platform powers the real-time communication, speed, and reliability that AI agents need to perform intelligently. By integrating across disparate communication platforms and unifying chat, voice, and messaging data, Sendbird provides rich context for every interaction. With Agent APIs—including the Safeguards API and Platform APIs—your AI concierge gains the insight to deliver faster, more accurate, and human customer experiences.
Learn more about AI concierge.